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| Mirrors > Home > HSE Home > Th. List > shjval | Structured version Visualization version GIF version | ||
| Description: Value of join in Sℋ. (Contributed by NM, 9-Aug-2000.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| shjval | ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 ∨ℋ 𝐵) = (⊥‘(⊥‘(𝐴 ∪ 𝐵)))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | shss 31296 | . 2 ⊢ (𝐴 ∈ Sℋ → 𝐴 ⊆ ℋ) | |
| 2 | shss 31296 | . 2 ⊢ (𝐵 ∈ Sℋ → 𝐵 ⊆ ℋ) | |
| 3 | sshjval 31436 | . 2 ⊢ ((𝐴 ⊆ ℋ ∧ 𝐵 ⊆ ℋ) → (𝐴 ∨ℋ 𝐵) = (⊥‘(⊥‘(𝐴 ∪ 𝐵)))) | |
| 4 | 1, 2, 3 | syl2an 597 | 1 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 ∨ℋ 𝐵) = (⊥‘(⊥‘(𝐴 ∪ 𝐵)))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∪ cun 3888 ⊆ wss 3890 ‘cfv 6492 (class class class)co 7360 ℋchba 31005 Sℋ csh 31014 ⊥cort 31016 ∨ℋ chj 31019 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5231 ax-nul 5241 ax-pr 5370 ax-hilex 31085 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-sbc 3730 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-id 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-iota 6448 df-fun 6494 df-fv 6500 df-ov 7363 df-oprab 7364 df-mpo 7365 df-sh 31293 df-chj 31396 |
| This theorem is referenced by: chjval 31438 shjcom 31444 shlej1 31446 shunssji 31455 shlub 31500 shjshsi 31578 |
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