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Mirrors > Home > HSE Home > Th. List > chincl | Structured version Visualization version GIF version |
Description: Closure of Hilbert lattice intersection. (Contributed by NM, 15-Jun-2004.) (New usage is discouraged.) |
Ref | Expression |
---|---|
chincl | ⊢ ((𝐴 ∈ Cℋ ∧ 𝐵 ∈ Cℋ ) → (𝐴 ∩ 𝐵) ∈ Cℋ ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ineq1 4206 | . . 3 ⊢ (𝐴 = if(𝐴 ∈ Cℋ , 𝐴, ℋ) → (𝐴 ∩ 𝐵) = (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ 𝐵)) | |
2 | 1 | eleq1d 2819 | . 2 ⊢ (𝐴 = if(𝐴 ∈ Cℋ , 𝐴, ℋ) → ((𝐴 ∩ 𝐵) ∈ Cℋ ↔ (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ 𝐵) ∈ Cℋ )) |
3 | ineq2 4207 | . . 3 ⊢ (𝐵 = if(𝐵 ∈ Cℋ , 𝐵, ℋ) → (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ 𝐵) = (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ if(𝐵 ∈ Cℋ , 𝐵, ℋ))) | |
4 | 3 | eleq1d 2819 | . 2 ⊢ (𝐵 = if(𝐵 ∈ Cℋ , 𝐵, ℋ) → ((if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ 𝐵) ∈ Cℋ ↔ (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ if(𝐵 ∈ Cℋ , 𝐵, ℋ)) ∈ Cℋ )) |
5 | ifchhv 30497 | . . 3 ⊢ if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∈ Cℋ | |
6 | ifchhv 30497 | . . 3 ⊢ if(𝐵 ∈ Cℋ , 𝐵, ℋ) ∈ Cℋ | |
7 | 5, 6 | chincli 30713 | . 2 ⊢ (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ if(𝐵 ∈ Cℋ , 𝐵, ℋ)) ∈ Cℋ |
8 | 2, 4, 7 | dedth2h 4588 | 1 ⊢ ((𝐴 ∈ Cℋ ∧ 𝐵 ∈ Cℋ ) → (𝐴 ∩ 𝐵) ∈ Cℋ ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 397 = wceq 1542 ∈ wcel 2107 ∩ cin 3948 ifcif 4529 ℋchba 30172 Cℋ cch 30182 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-rep 5286 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7725 ax-cnex 11166 ax-1cn 11168 ax-addcl 11170 ax-hilex 30252 ax-hfvadd 30253 ax-hv0cl 30256 ax-hfvmul 30258 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-ral 3063 df-rex 3072 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4910 df-int 4952 df-iun 5000 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-ov 7412 df-oprab 7413 df-mpo 7414 df-om 7856 df-2nd 7976 df-frecs 8266 df-wrecs 8297 df-recs 8371 df-rdg 8410 df-map 8822 df-nn 12213 df-hlim 30225 df-sh 30460 df-ch 30474 |
This theorem is referenced by: chabs1 30769 chdmj1 30782 fh1 30871 fh2 30872 cm2j 30873 mdbr2 31549 mdbr3 31550 mdbr4 31551 dmdmd 31553 dmdbr2 31556 dmdbr5 31561 mddmd2 31562 mdsl0 31563 mdsl3 31569 mdsl2i 31575 mdslmd1i 31582 cvp 31628 atomli 31635 atordi 31637 atcvat3i 31649 atcvat4i 31650 mdsymlem1 31656 mdsymlem3 31658 mdsymlem5 31660 mdsymlem6 31661 sumdmdii 31668 dmdbr5ati 31675 |
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