Mathbox for Norm Megill |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > lshpinN | Structured version Visualization version GIF version |
Description: The intersection of two different hyperplanes is not a hyperplane. (Contributed by NM, 29-Oct-2014.) (New usage is discouraged.) |
Ref | Expression |
---|---|
lshpin.h | ⊢ 𝐻 = (LSHyp‘𝑊) |
lshpin.w | ⊢ (𝜑 → 𝑊 ∈ LVec) |
lshpin.t | ⊢ (𝜑 → 𝑇 ∈ 𝐻) |
lshpin.u | ⊢ (𝜑 → 𝑈 ∈ 𝐻) |
Ref | Expression |
---|---|
lshpinN | ⊢ (𝜑 → ((𝑇 ∩ 𝑈) ∈ 𝐻 ↔ 𝑇 = 𝑈)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | inss1 3795 | . . . . 5 ⊢ (𝑇 ∩ 𝑈) ⊆ 𝑇 | |
2 | lshpin.h | . . . . . 6 ⊢ 𝐻 = (LSHyp‘𝑊) | |
3 | lshpin.w | . . . . . . 7 ⊢ (𝜑 → 𝑊 ∈ LVec) | |
4 | 3 | adantr 480 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → 𝑊 ∈ LVec) |
5 | simpr 476 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → (𝑇 ∩ 𝑈) ∈ 𝐻) | |
6 | lshpin.t | . . . . . . 7 ⊢ (𝜑 → 𝑇 ∈ 𝐻) | |
7 | 6 | adantr 480 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → 𝑇 ∈ 𝐻) |
8 | 2, 4, 5, 7 | lshpcmp 33293 | . . . . 5 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → ((𝑇 ∩ 𝑈) ⊆ 𝑇 ↔ (𝑇 ∩ 𝑈) = 𝑇)) |
9 | 1, 8 | mpbii 222 | . . . 4 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → (𝑇 ∩ 𝑈) = 𝑇) |
10 | inss2 3796 | . . . . 5 ⊢ (𝑇 ∩ 𝑈) ⊆ 𝑈 | |
11 | lshpin.u | . . . . . . 7 ⊢ (𝜑 → 𝑈 ∈ 𝐻) | |
12 | 11 | adantr 480 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → 𝑈 ∈ 𝐻) |
13 | 2, 4, 5, 12 | lshpcmp 33293 | . . . . 5 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → ((𝑇 ∩ 𝑈) ⊆ 𝑈 ↔ (𝑇 ∩ 𝑈) = 𝑈)) |
14 | 10, 13 | mpbii 222 | . . . 4 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → (𝑇 ∩ 𝑈) = 𝑈) |
15 | 9, 14 | eqtr3d 2646 | . . 3 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → 𝑇 = 𝑈) |
16 | 15 | ex 449 | . 2 ⊢ (𝜑 → ((𝑇 ∩ 𝑈) ∈ 𝐻 → 𝑇 = 𝑈)) |
17 | inidm 3784 | . . . 4 ⊢ (𝑇 ∩ 𝑇) = 𝑇 | |
18 | 17, 6 | syl5eqel 2692 | . . 3 ⊢ (𝜑 → (𝑇 ∩ 𝑇) ∈ 𝐻) |
19 | ineq2 3770 | . . . 4 ⊢ (𝑇 = 𝑈 → (𝑇 ∩ 𝑇) = (𝑇 ∩ 𝑈)) | |
20 | 19 | eleq1d 2672 | . . 3 ⊢ (𝑇 = 𝑈 → ((𝑇 ∩ 𝑇) ∈ 𝐻 ↔ (𝑇 ∩ 𝑈) ∈ 𝐻)) |
21 | 18, 20 | syl5ibcom 234 | . 2 ⊢ (𝜑 → (𝑇 = 𝑈 → (𝑇 ∩ 𝑈) ∈ 𝐻)) |
22 | 16, 21 | impbid 201 | 1 ⊢ (𝜑 → ((𝑇 ∩ 𝑈) ∈ 𝐻 ↔ 𝑇 = 𝑈)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 195 ∧ wa 383 = wceq 1475 ∈ wcel 1977 ∩ cin 3539 ⊆ wss 3540 ‘cfv 5804 LVecclvec 18923 LSHypclsh 33280 |
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-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 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 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-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-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-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-1st 7059 df-2nd 7060 df-tpos 7239 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-nn 10898 df-2 10956 df-3 10957 df-ndx 15698 df-slot 15699 df-base 15700 df-sets 15701 df-ress 15702 df-plusg 15781 df-mulr 15782 df-0g 15925 df-mgm 17065 df-sgrp 17107 df-mnd 17118 df-submnd 17159 df-grp 17248 df-minusg 17249 df-sbg 17250 df-subg 17414 df-cntz 17573 df-lsm 17874 df-cmn 18018 df-abl 18019 df-mgp 18313 df-ur 18325 df-ring 18372 df-oppr 18446 df-dvdsr 18464 df-unit 18465 df-invr 18495 df-drng 18572 df-lmod 18688 df-lss 18754 df-lsp 18793 df-lvec 18924 df-lshyp 33282 |
This theorem is referenced by: (None) |
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