cgrxfr - Mathbox for Scott Fenton

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Theorem cgrxfr 31332

Description: A line segment can be divided at the same place as a congruent line segment is divided. Theorem 4.5 of [Schwabhauser] p. 35. (Contributed by Scott Fenton, 4-Oct-2013.)

**Assertion**
Ref	Expression
cgrxfr	⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))

Distinct variable groups: 𝐴,𝑒 𝐵,𝑒 𝐶,𝑒 𝐷,𝑒 𝑒,𝐹 𝑒,𝑁

Proof of Theorem cgrxfr Dummy variables 𝑓 𝑔 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl1 1057	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → 𝑁 ∈ ℕ)
2		simpl3r 1110	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → 𝐹 ∈ (𝔼‘𝑁))
3		simpl3l 1109	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → 𝐷 ∈ (𝔼‘𝑁))
4		btwndiff 31304	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝐹 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) → ∃𝑔 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))
5	1, 2, 3, 4	syl3anc 1318	. . 3 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → ∃𝑔 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))
6		simpl1 1057	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝑁 ∈ ℕ)
7		simpr 476	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝑔 ∈ (𝔼‘𝑁))
8		simpl3l 1109	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝐷 ∈ (𝔼‘𝑁))
9		simpl21 1132	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝐴 ∈ (𝔼‘𝑁))
10		simpl22 1133	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝐵 ∈ (𝔼‘𝑁))
11		axsegcon 25607	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁))) → ∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))
12	6, 7, 8, 9, 10, 11	syl122anc 1327	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → ∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))
13	12	adantr 480	. . . . . . 7 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))
14		anass 679	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ 𝑒 ∈ (𝔼‘𝑁)) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))))
15		simpl1 1057	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝑁 ∈ ℕ)
16		simprl 790	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝑔 ∈ (𝔼‘𝑁))
17		simprr 792	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝑒 ∈ (𝔼‘𝑁))
18		simpl22 1133	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝐵 ∈ (𝔼‘𝑁))
19		simpl23 1134	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝐶 ∈ (𝔼‘𝑁))
20		axsegcon 25607	. . . . . . . . . . . . . 14 ⊢ ((𝑁 ∈ ℕ ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ (𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁))) → ∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))
21	15, 16, 17, 18, 19, 20	syl122anc 1327	. . . . . . . . . . . . 13 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → ∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))
22	21	adantr 480	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))
23		anass 679	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ 𝑓 ∈ (𝔼‘𝑁)) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ 𝑓 ∈ (𝔼‘𝑁))))
24		df-3an 1033	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁)) ↔ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ 𝑓 ∈ (𝔼‘𝑁)))
25	24	anbi2i 726	. . . . . . . . . . . . . . . 16 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ 𝑓 ∈ (𝔼‘𝑁))))
26	23, 25	bitr4i 266	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ 𝑓 ∈ (𝔼‘𝑁)) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))))
27		simplrr 797	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐷 ≠ 𝑔)
28	27	ad2antrl 760	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 ≠ 𝑔)
29	28	necomd 2837	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑔 ≠ 𝐷)
30		simpl1 1057	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑁 ∈ ℕ)
31		simpr1 1060	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑔 ∈ (𝔼‘𝑁))
32		simpl3l 1109	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐷 ∈ (𝔼‘𝑁))
33		simpr2 1061	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑒 ∈ (𝔼‘𝑁))
34		simpr3 1062	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑓 ∈ (𝔼‘𝑁))
35		simprl 790	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐷 Btwn ⟨𝑔, 𝑒⟩)
36	35	ad2antrl 760	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝑔, 𝑒⟩)
37		simprrl 800	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑒 Btwn ⟨𝑔, 𝑓⟩)
38	30, 31, 32, 33, 34, 36, 37	btwnexchand 31303	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝑔, 𝑓⟩)
39		simpl21 1132	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐴 ∈ (𝔼‘𝑁))
40		simpl22 1133	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐵 ∈ (𝔼‘𝑁))
41		simpl23 1134	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐶 ∈ (𝔼‘𝑁))
42	30, 31, 32, 33, 34, 36, 37	btwnexch3and 31298	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑒 Btwn ⟨𝐷, 𝑓⟩)
43		simplll 794	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐵 Btwn ⟨𝐴, 𝐶⟩)
44	43	ad2antrl 760	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐵 Btwn ⟨𝐴, 𝐶⟩)
45		simprr 792	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
46	45	ad2antrl 760	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
47		simprrr 801	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)
48	30, 32, 33, 34, 39, 40, 41, 42, 44, 46, 47	cgrextendand 31286	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩)
49	38, 48	jca 553	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩))
50		simpl3r 1110	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐹 ∈ (𝔼‘𝑁))
51		simplrl 796	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐷 Btwn ⟨𝐹, 𝑔⟩)
52	51	ad2antrl 760	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝐹, 𝑔⟩)
53	30, 32, 50, 31, 52	btwncomand 31292	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝑔, 𝐹⟩)
54		simpllr 795	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)
55	54	ad2antrl 760	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)
56	30, 39, 41, 32, 50, 55	cgrcomand 31268	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)
57	53, 56	jca 553	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩))
58	29, 49, 57	3jca 1235	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)))
59	58	ex 449	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩))))
60		segconeq 31287	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑁 ∈ ℕ ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐴 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)) → 𝑓 = 𝐹))
61	30, 32, 39, 41, 31, 34, 50, 60	syl133anc 1341	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → ((𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)) → 𝑓 = 𝐹))
62	59, 61	syld 46	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑓 = 𝐹))
63	62	imp 444	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑓 = 𝐹)
64		opeq2 4341	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑓 = 𝐹 → ⟨𝑔, 𝑓⟩ = ⟨𝑔, 𝐹⟩)
65	64	breq2d 4595	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑓 = 𝐹 → (𝑒 Btwn ⟨𝑔, 𝑓⟩ ↔ 𝑒 Btwn ⟨𝑔, 𝐹⟩))
66		opeq2 4341	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑓 = 𝐹 → ⟨𝑒, 𝑓⟩ = ⟨𝑒, 𝐹⟩)
67	66	breq1d 4593	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑓 = 𝐹 → (⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩ ↔ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))
68	65, 67	anbi12d 743	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑓 = 𝐹 → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) ↔ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)))
69	68	biimpa 500	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑓 = 𝐹 ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))
70		simpl 472	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩) → 𝑒 Btwn ⟨𝑔, 𝐹⟩)
71		btwnexch3 31297	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑁 ∈ ℕ ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ (𝑒 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ 𝑒 Btwn ⟨𝑔, 𝐹⟩) → 𝑒 Btwn ⟨𝐷, 𝐹⟩))
72	30, 31, 32, 33, 50, 71	syl122anc 1327	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ 𝑒 Btwn ⟨𝑔, 𝐹⟩) → 𝑒 Btwn ⟨𝐷, 𝐹⟩))
73	35, 70, 72	syl2ani 686	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑒 Btwn ⟨𝐷, 𝐹⟩))
74	73	imp 444	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑒 Btwn ⟨𝐷, 𝐹⟩)
75		simplrr 797	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
76	75	adantl 481	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
77	30, 32, 33, 39, 40, 76	cgrcomand 31268	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩)
78	54	ad2antrl 760	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)
79		simprrr 801	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)
80	30, 33, 50, 40, 41, 79	cgrcomand 31268	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)
81		brcgr3 31323	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → (⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩ ↔ (⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩ ∧ ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)))
82	30, 39, 40, 41, 32, 33, 50, 81	syl133anc 1341	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩ ↔ (⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩ ∧ ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)))
83	82	adantr 480	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → (⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩ ↔ (⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩ ∧ ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)))
84	77, 78, 80, 83	mpbir3and 1238	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)
85	74, 84	jca 553	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
86	85	expr 641	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
87	69, 86	syl5 33	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑓 = 𝐹 ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
88	87	expcomd 453	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑓 = 𝐹 → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))))
89	88	impr 647	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑓 = 𝐹 → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
90	63, 89	mpd 15	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
91	90	expr 641	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
92	26, 91	sylanb 488	. . . . . . . . . . . . . 14 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ 𝑓 ∈ (𝔼‘𝑁)) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
93	92	an32s 842	. . . . . . . . . . . . 13 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) ∧ 𝑓 ∈ (𝔼‘𝑁)) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
94	93	rexlimdva 3013	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → (∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
95	22, 94	mpd 15	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
96	95	expr 641	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
97	14, 96	sylanb 488	. . . . . . . . 9 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
98	97	an32s 842	. . . . . . . 8 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) ∧ 𝑒 ∈ (𝔼‘𝑁)) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
99	98	reximdva 3000	. . . . . . 7 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → (∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
100	13, 99	mpd 15	. . . . . 6 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
101	100	expr 641	. . . . 5 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → ((𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
102	101	an32s 842	. . . 4 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) ∧ 𝑔 ∈ (𝔼‘𝑁)) → ((𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
103	102	rexlimdva 3013	. . 3 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → (∃𝑔 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
104	5, 103	mpd 15	. 2 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
105	104	ex 449	1 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 195 ∧ wa 383 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 ≠ wne 2780 ∃wrex 2897 ⟨cop 4131 class class class wbr 4583 ‘cfv 5804 ℕcn 10897 𝔼cee 25568 Btwn cbtwn 25569 Cgrccgr 25570 Cgr3ccgr3 31313

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-inf2 8421 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 ax-pre-sup 9893

This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-fal 1481 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-int 4411 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-se 4998 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-isom 5813 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-1st 7059 df-2nd 7060 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-1o 7447 df-oadd 7451 df-er 7629 df-map 7746 df-en 7842 df-dom 7843 df-sdom 7844 df-fin 7845 df-sup 8231 df-oi 8298 df-card 8648 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-div 10564 df-nn 10898 df-2 10956 df-3 10957 df-n0 11170 df-z 11255 df-uz 11564 df-rp 11709 df-ico 12052 df-icc 12053 df-fz 12198 df-fzo 12335 df-seq 12664 df-exp 12723 df-hash 12980 df-cj 13687 df-re 13688 df-im 13689 df-sqrt 13823 df-abs 13824 df-clim 14067 df-sum 14265 df-ee 25571 df-btwn 25572 df-cgr 25573 df-ofs 31260 df-cgr3 31318

This theorem is referenced by: btwnxfr 31333 lineext 31353 seglecgr12im 31387 segletr 31391

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