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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 4159 | . . 3 ⊢ (𝐴 = if(𝐴 ∈ Cℋ , 𝐴, ℋ) → (𝐴 ∩ 𝐵) = (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ 𝐵)) | |
| 2 | 1 | eleq1d 2846 | . 2 ⊢ (𝐴 = if(𝐴 ∈ Cℋ , 𝐴, ℋ) → ((𝐴 ∩ 𝐵) ∈ Cℋ ↔ (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ 𝐵) ∈ Cℋ )) |
| 3 | ineq2 4160 | . . 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 2846 | . 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 31828 | . . 3 ⊢ if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∈ Cℋ | |
| 6 | ifchhv 31828 | . . 3 ⊢ if(𝐵 ∈ Cℋ , 𝐵, ℋ) ∈ Cℋ | |
| 7 | 5, 6 | chincli 32044 | . 2 ⊢ (if(𝐴 ∈ Cℋ , 𝐴, ℋ) ∩ if(𝐵 ∈ Cℋ , 𝐵, ℋ)) ∈ Cℋ |
| 8 | 2, 4, 7 | dedth2h 4542 | 1 ⊢ ((𝐴 ∈ Cℋ ∧ 𝐵 ∈ Cℋ ) → (𝐴 ∩ 𝐵) ∈ Cℋ ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∩ cin 3898 ifcif 4482 ℋchba 31503 Cℋ cch 31513 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 ax-cnex 11237 ax-1cn 11239 ax-addcl 11241 ax-hilex 31583 ax-hfvadd 31584 ax-hv0cl 31587 ax-hfvmul 31589 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7867 df-2nd 7991 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-map 8833 df-nn 12317 df-hlim 31556 df-sh 31791 df-ch 31805 |
| This theorem is used by: chabs1 32100 chdmj1 32113 fh1 32202 fh2 32203 cm2j 32204 mdbr2 32880 mdbr3 32881 mdbr4 32882 dmdmd 32884 dmdbr2 32887 dmdbr5 32892 mddmd2 32893 mdsl0 32894 mdsl3 32900 mdsl2i 32906 mdslmd1i 32913 cvp 32959 atomli 32966 atordi 32968 atcvat3i 32980 atcvat4i 32981 mdsymlem1 32987 mdsymlem3 32989 mdsymlem5 32991 mdsymlem6 32992 sumdmdii 32999 dmdbr5ati 33006 |
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