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Mirrors > Home > HSE Home > Th. List > shjcom | Structured version Visualization version GIF version |
Description: Commutative law for Hilbert lattice join of subspaces. (Contributed by NM, 22-Jun-2004.) (New usage is discouraged.) |
Ref | Expression |
---|---|
shjcom | ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 ∨ℋ 𝐵) = (𝐵 ∨ℋ 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | shjval 30138 | . 2 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 ∨ℋ 𝐵) = (⊥‘(⊥‘(𝐴 ∪ 𝐵)))) | |
2 | shjval 30138 | . . . 4 ⊢ ((𝐵 ∈ Sℋ ∧ 𝐴 ∈ Sℋ ) → (𝐵 ∨ℋ 𝐴) = (⊥‘(⊥‘(𝐵 ∪ 𝐴)))) | |
3 | 2 | ancoms 459 | . . 3 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐵 ∨ℋ 𝐴) = (⊥‘(⊥‘(𝐵 ∪ 𝐴)))) |
4 | uncom 4111 | . . . . 5 ⊢ (𝐵 ∪ 𝐴) = (𝐴 ∪ 𝐵) | |
5 | 4 | fveq2i 6842 | . . . 4 ⊢ (⊥‘(𝐵 ∪ 𝐴)) = (⊥‘(𝐴 ∪ 𝐵)) |
6 | 5 | fveq2i 6842 | . . 3 ⊢ (⊥‘(⊥‘(𝐵 ∪ 𝐴))) = (⊥‘(⊥‘(𝐴 ∪ 𝐵))) |
7 | 3, 6 | eqtrdi 2792 | . 2 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐵 ∨ℋ 𝐴) = (⊥‘(⊥‘(𝐴 ∪ 𝐵)))) |
8 | 1, 7 | eqtr4d 2779 | 1 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 ∨ℋ 𝐵) = (𝐵 ∨ℋ 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ∪ cun 3906 ‘cfv 6493 (class class class)co 7351 Sℋ csh 29715 ⊥cort 29717 ∨ℋ chj 29720 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-sep 5254 ax-nul 5261 ax-pr 5382 ax-hilex 29786 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2887 df-ne 2942 df-ral 3063 df-rex 3072 df-rab 3406 df-v 3445 df-sbc 3738 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4281 df-if 4485 df-pw 4560 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4864 df-br 5104 df-opab 5166 df-id 5529 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6445 df-fun 6495 df-fv 6501 df-ov 7354 df-oprab 7355 df-mpo 7356 df-sh 29994 df-chj 30097 |
This theorem is referenced by: shlej2 30148 shjcomi 30158 shub2 30170 chjcom 30293 |
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