Theorem pmapglb2N 34075

Description: The projective map of the GLB of a set of lattice elements 𝑆. Variant of Theorem 15.5.2 of [MaedaMaeda] p. 62. Allows 𝑆 = ∅. (Contributed by NM, 21-Jan-2012.) (New usage is discouraged.)

Hypotheses

Ref	Expression
pmapglb2.b	⊢ 𝐵 = (Base‘𝐾)
pmapglb2.g	⊢ 𝐺 = (glb‘𝐾)
pmapglb2.a	⊢ 𝐴 = (Atoms‘𝐾)
pmapglb2.m	⊢ 𝑀 = (pmap‘𝐾)

Assertion

Ref	Expression
pmapglb2N	⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)))

Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝑥,𝐾   𝑥,𝑆

Allowed substitution hints:   𝐺(𝑥)   𝑀(𝑥)

Proof of Theorem pmapglb2N

Step	Hyp	Ref	Expression
1		hlop 33667	. . . . 5 ⊢ (𝐾 ∈ HL → 𝐾 ∈ OP)
2		pmapglb2.g	. . . . . . . 8 ⊢ 𝐺 = (glb‘𝐾)
3		eqid 2610	. . . . . . . 8 ⊢ (1.‘𝐾) = (1.‘𝐾)
4	2, 3	glb0N 33498	. . . . . . 7 ⊢ (𝐾 ∈ OP → (𝐺‘∅) = (1.‘𝐾))
5	4	fveq2d 6107	. . . . . 6 ⊢ (𝐾 ∈ OP → (𝑀‘(𝐺‘∅)) = (𝑀‘(1.‘𝐾)))
6		pmapglb2.a	. . . . . . 7 ⊢ 𝐴 = (Atoms‘𝐾)
7		pmapglb2.m	. . . . . . 7 ⊢ 𝑀 = (pmap‘𝐾)
8	3, 6, 7	pmap1N 34071	. . . . . 6 ⊢ (𝐾 ∈ OP → (𝑀‘(1.‘𝐾)) = 𝐴)
9	5, 8	eqtrd 2644	. . . . 5 ⊢ (𝐾 ∈ OP → (𝑀‘(𝐺‘∅)) = 𝐴)
10	1, 9	syl 17	. . . 4 ⊢ (𝐾 ∈ HL → (𝑀‘(𝐺‘∅)) = 𝐴)
11		fveq2 6103	. . . . . 6 ⊢ (𝑆 = ∅ → (𝐺‘𝑆) = (𝐺‘∅))
12	11	fveq2d 6107	. . . . 5 ⊢ (𝑆 = ∅ → (𝑀‘(𝐺‘𝑆)) = (𝑀‘(𝐺‘∅)))
13		riin0 4530	. . . . 5 ⊢ (𝑆 = ∅ → (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) = 𝐴)
14	12, 13	eqeq12d 2625	. . . 4 ⊢ (𝑆 = ∅ → ((𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) ↔ (𝑀‘(𝐺‘∅)) = 𝐴))
15	10, 14	syl5ibrcom 236	. . 3 ⊢ (𝐾 ∈ HL → (𝑆 = ∅ → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))))
16	15	adantr 480	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑆 = ∅ → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))))
17		pmapglb2.b	. . . . 5 ⊢ 𝐵 = (Base‘𝐾)
18	17, 2, 7	pmapglb 34074	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → (𝑀‘(𝐺‘𝑆)) = ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))
19		simpr 476	. . . . . . . . . . 11 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝑆)
20		simpll 786	. . . . . . . . . . . 12 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → 𝐾 ∈ HL)
21		ssel2 3563	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝐵)
22	21	adantll 746	. . . . . . . . . . . 12 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝐵)
23	17, 6, 7	pmapssat 34063	. . . . . . . . . . . 12 ⊢ ((𝐾 ∈ HL ∧ 𝑥 ∈ 𝐵) → (𝑀‘𝑥) ⊆ 𝐴)
24	20, 22, 23	syl2anc 691	. . . . . . . . . . 11 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → (𝑀‘𝑥) ⊆ 𝐴)
25	19, 24	jca 553	. . . . . . . . . 10 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → (𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴))
26	25	ex 449	. . . . . . . . 9 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑥 ∈ 𝑆 → (𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴)))
27	26	eximdv 1833	. . . . . . . 8 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (∃𝑥 𝑥 ∈ 𝑆 → ∃𝑥(𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴)))
28		n0 3890	. . . . . . . 8 ⊢ (𝑆 ≠ ∅ ↔ ∃𝑥 𝑥 ∈ 𝑆)
29		df-rex 2902	. . . . . . . 8 ⊢ (∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴 ↔ ∃𝑥(𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴))
30	27, 28, 29	3imtr4g 284	. . . . . . 7 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑆 ≠ ∅ → ∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴))
31	30	3impia 1253	. . . . . 6 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → ∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴)
32		iinss 4507	. . . . . 6 ⊢ (∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴 → ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴)
33	31, 32	syl 17	. . . . 5 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴)
34		sseqin2 3779	. . . . 5 ⊢ (∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴 ↔ (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) = ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))
35	33, 34	sylib 207	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) = ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))
36	18, 35	eqtr4d 2647	. . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)))
37	36	3expia 1259	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑆 ≠ ∅ → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))))
38	16, 37	pm2.61dne 2868	1 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)))

Syntax hints:   → wi 4   ∧ wa 383   ∧ w3a 1031   = wceq 1475  ∃wex 1695   ∈ wcel 1977   ≠ wne 2780  ∃wrex 2897   ∩ cin 3539   ⊆ wss 3540  ∅c0 3874  ∩ ciin 4456  ‘cfv 5804  Basecbs 15695  glbcglb 16766  1.cp1 16861  OPcops 33477  Atomscatm 33568  HLchlt 33655  pmapcpmap 33801

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

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3an 1033  df-tru 1478  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-ral 2901  df-rex 2902  df-reu 2903  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-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-op 4132  df-uni 4373  df-iun 4457  df-iin 4458  df-br 4584  df-opab 4644  df-mpt 4645  df-id 4953  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-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-preset 16751  df-poset 16769  df-lub 16797  df-glb 16798  df-join 16799  df-meet 16800  df-p1 16863  df-lat 16869  df-clat 16931  df-oposet 33481  df-ol 33483  df-oml 33484  df-ats 33572  df-hlat 33656  df-pmap 33808

This theorem is referenced by: (None)