Mathbox for Norm Megill |
< Previous
Next >
Nearby theorems |
||
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 4129 | . . . . 5 ⊢ (𝑇 ∩ 𝑈) ⊆ 𝑇 | |
2 | lshpin.h | . . . . . 6 ⊢ 𝐻 = (LSHyp‘𝑊) | |
3 | lshpin.w | . . . . . . 7 ⊢ (𝜑 → 𝑊 ∈ LVec) | |
4 | 3 | adantr 484 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → 𝑊 ∈ LVec) |
5 | simpr 488 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → (𝑇 ∩ 𝑈) ∈ 𝐻) | |
6 | lshpin.t | . . . . . . 7 ⊢ (𝜑 → 𝑇 ∈ 𝐻) | |
7 | 6 | adantr 484 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → 𝑇 ∈ 𝐻) |
8 | 2, 4, 5, 7 | lshpcmp 36688 | . . . . 5 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → ((𝑇 ∩ 𝑈) ⊆ 𝑇 ↔ (𝑇 ∩ 𝑈) = 𝑇)) |
9 | 1, 8 | mpbii 236 | . . . 4 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → (𝑇 ∩ 𝑈) = 𝑇) |
10 | inss2 4130 | . . . . 5 ⊢ (𝑇 ∩ 𝑈) ⊆ 𝑈 | |
11 | lshpin.u | . . . . . . 7 ⊢ (𝜑 → 𝑈 ∈ 𝐻) | |
12 | 11 | adantr 484 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → 𝑈 ∈ 𝐻) |
13 | 2, 4, 5, 12 | lshpcmp 36688 | . . . . 5 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → ((𝑇 ∩ 𝑈) ⊆ 𝑈 ↔ (𝑇 ∩ 𝑈) = 𝑈)) |
14 | 10, 13 | mpbii 236 | . . . 4 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → (𝑇 ∩ 𝑈) = 𝑈) |
15 | 9, 14 | eqtr3d 2773 | . . 3 ⊢ ((𝜑 ∧ (𝑇 ∩ 𝑈) ∈ 𝐻) → 𝑇 = 𝑈) |
16 | 15 | ex 416 | . 2 ⊢ (𝜑 → ((𝑇 ∩ 𝑈) ∈ 𝐻 → 𝑇 = 𝑈)) |
17 | inidm 4119 | . . . 4 ⊢ (𝑇 ∩ 𝑇) = 𝑇 | |
18 | 17, 6 | eqeltrid 2835 | . . 3 ⊢ (𝜑 → (𝑇 ∩ 𝑇) ∈ 𝐻) |
19 | ineq2 4107 | . . . 4 ⊢ (𝑇 = 𝑈 → (𝑇 ∩ 𝑇) = (𝑇 ∩ 𝑈)) | |
20 | 19 | eleq1d 2815 | . . 3 ⊢ (𝑇 = 𝑈 → ((𝑇 ∩ 𝑇) ∈ 𝐻 ↔ (𝑇 ∩ 𝑈) ∈ 𝐻)) |
21 | 18, 20 | syl5ibcom 248 | . 2 ⊢ (𝜑 → (𝑇 = 𝑈 → (𝑇 ∩ 𝑈) ∈ 𝐻)) |
22 | 16, 21 | impbid 215 | 1 ⊢ (𝜑 → ((𝑇 ∩ 𝑈) ∈ 𝐻 ↔ 𝑇 = 𝑈)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 = wceq 1543 ∈ wcel 2112 ∩ cin 3852 ⊆ wss 3853 ‘cfv 6358 LVecclvec 20093 LSHypclsh 36675 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-rep 5164 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 ax-cnex 10750 ax-resscn 10751 ax-1cn 10752 ax-icn 10753 ax-addcl 10754 ax-addrcl 10755 ax-mulcl 10756 ax-mulrcl 10757 ax-mulcom 10758 ax-addass 10759 ax-mulass 10760 ax-distr 10761 ax-i2m1 10762 ax-1ne0 10763 ax-1rid 10764 ax-rnegex 10765 ax-rrecex 10766 ax-cnre 10767 ax-pre-lttri 10768 ax-pre-lttrn 10769 ax-pre-ltadd 10770 ax-pre-mulgt0 10771 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-nel 3037 df-ral 3056 df-rex 3057 df-reu 3058 df-rmo 3059 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-pss 3872 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-tp 4532 df-op 4534 df-uni 4806 df-int 4846 df-iun 4892 df-br 5040 df-opab 5102 df-mpt 5121 df-tr 5147 df-id 5440 df-eprel 5445 df-po 5453 df-so 5454 df-fr 5494 df-we 5496 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-pred 6140 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-riota 7148 df-ov 7194 df-oprab 7195 df-mpo 7196 df-om 7623 df-1st 7739 df-2nd 7740 df-tpos 7946 df-wrecs 8025 df-recs 8086 df-rdg 8124 df-er 8369 df-en 8605 df-dom 8606 df-sdom 8607 df-pnf 10834 df-mnf 10835 df-xr 10836 df-ltxr 10837 df-le 10838 df-sub 11029 df-neg 11030 df-nn 11796 df-2 11858 df-3 11859 df-ndx 16669 df-slot 16670 df-base 16672 df-sets 16673 df-ress 16674 df-plusg 16762 df-mulr 16763 df-0g 16900 df-mgm 18068 df-sgrp 18117 df-mnd 18128 df-submnd 18173 df-grp 18322 df-minusg 18323 df-sbg 18324 df-subg 18494 df-cntz 18665 df-lsm 18979 df-cmn 19126 df-abl 19127 df-mgp 19459 df-ur 19471 df-ring 19518 df-oppr 19595 df-dvdsr 19613 df-unit 19614 df-invr 19644 df-drng 19723 df-lmod 19855 df-lss 19923 df-lsp 19963 df-lvec 20094 df-lshyp 36677 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |