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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 4176 | . . 3 ⊢ (𝐴 = if(𝐴 ∈ Cℋ , 𝐴, ℋ) → (𝐴 ∩ 𝐵) = (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ 𝐵)) | |
| 2 | 1 | eleq1d 2813 | . 2 ⊢ (𝐴 = if(𝐴 ∈ Cℋ , 𝐴, ℋ) → ((𝐴 ∩ 𝐵) ∈ Cℋ ↔ (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ 𝐵) ∈ Cℋ )) |
| 3 | ineq2 4177 | . . 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 2813 | . 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 31173 | . . 3 ⊢ if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∈ Cℋ | |
| 6 | ifchhv 31173 | . . 3 ⊢ if(𝐵 ∈ Cℋ , 𝐵, ℋ) ∈ Cℋ | |
| 7 | 5, 6 | chincli 31389 | . 2 ⊢ (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ if(𝐵 ∈ Cℋ , 𝐵, ℋ)) ∈ Cℋ |
| 8 | 2, 4, 7 | dedth2h 4548 | 1 ⊢ ((𝐴 ∈ Cℋ ∧ 𝐵 ∈ Cℋ ) → (𝐴 ∩ 𝐵) ∈ Cℋ ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ∩ cin 3913 ifcif 4488 ℋchba 30848 Cℋ cch 30858 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5234 ax-sep 5251 ax-nul 5261 ax-pow 5320 ax-pr 5387 ax-un 7711 ax-cnex 11124 ax-1cn 11126 ax-addcl 11128 ax-hilex 30928 ax-hfvadd 30929 ax-hv0cl 30932 ax-hfvmul 30934 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-ral 3045 df-rex 3054 df-reu 3355 df-rab 3406 df-v 3449 df-sbc 3754 df-csb 3863 df-dif 3917 df-un 3919 df-in 3921 df-ss 3931 df-pss 3934 df-nul 4297 df-if 4489 df-pw 4565 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4872 df-int 4911 df-iun 4957 df-br 5108 df-opab 5170 df-mpt 5189 df-tr 5215 df-id 5533 df-eprel 5538 df-po 5546 df-so 5547 df-fr 5591 df-we 5593 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-pred 6274 df-ord 6335 df-on 6336 df-lim 6337 df-suc 6338 df-iota 6464 df-fun 6513 df-fn 6514 df-f 6515 df-f1 6516 df-fo 6517 df-f1o 6518 df-fv 6519 df-ov 7390 df-oprab 7391 df-mpo 7392 df-om 7843 df-2nd 7969 df-frecs 8260 df-wrecs 8291 df-recs 8340 df-rdg 8378 df-map 8801 df-nn 12187 df-hlim 30901 df-sh 31136 df-ch 31150 |
| This theorem is referenced by: chabs1 31445 chdmj1 31458 fh1 31547 fh2 31548 cm2j 31549 mdbr2 32225 mdbr3 32226 mdbr4 32227 dmdmd 32229 dmdbr2 32232 dmdbr5 32237 mddmd2 32238 mdsl0 32239 mdsl3 32245 mdsl2i 32251 mdslmd1i 32258 cvp 32304 atomli 32311 atordi 32313 atcvat3i 32325 atcvat4i 32326 mdsymlem1 32332 mdsymlem3 32334 mdsymlem5 32336 mdsymlem6 32337 sumdmdii 32344 dmdbr5ati 32351 |
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