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Mirrors > Home > HSE Home > Th. List > chjvali | Structured version Visualization version GIF version |
Description: Value of join in Cℋ. (Contributed by NM, 9-Aug-2000.) (New usage is discouraged.) |
Ref | Expression |
---|---|
chjval.1 | ⊢ 𝐴 ∈ Cℋ |
chjval.2 | ⊢ 𝐵 ∈ Cℋ |
Ref | Expression |
---|---|
chjvali | ⊢ (𝐴 ∨ℋ 𝐵) = (⊥‘(⊥‘(𝐴 ∪ 𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | chjval.1 | . 2 ⊢ 𝐴 ∈ Cℋ | |
2 | chjval.2 | . 2 ⊢ 𝐵 ∈ Cℋ | |
3 | chjval 28913 | . 2 ⊢ ((𝐴 ∈ Cℋ ∧ 𝐵 ∈ Cℋ ) → (𝐴 ∨ℋ 𝐵) = (⊥‘(⊥‘(𝐴 ∪ 𝐵)))) | |
4 | 1, 2, 3 | mp2an 679 | 1 ⊢ (𝐴 ∨ℋ 𝐵) = (⊥‘(⊥‘(𝐴 ∪ 𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1507 ∈ wcel 2050 ∪ cun 3829 ‘cfv 6190 (class class class)co 6978 Cℋ cch 28488 ⊥cort 28489 ∨ℋ chj 28492 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1758 ax-4 1772 ax-5 1869 ax-6 1928 ax-7 1965 ax-8 2052 ax-9 2059 ax-10 2079 ax-11 2093 ax-12 2106 ax-13 2301 ax-ext 2750 ax-sep 5061 ax-nul 5068 ax-pr 5187 ax-hilex 28558 |
This theorem depends on definitions: df-bi 199 df-an 388 df-or 834 df-3an 1070 df-tru 1510 df-ex 1743 df-nf 1747 df-sb 2016 df-mo 2547 df-eu 2583 df-clab 2759 df-cleq 2771 df-clel 2846 df-nfc 2918 df-ral 3093 df-rex 3094 df-rab 3097 df-v 3417 df-sbc 3684 df-dif 3834 df-un 3836 df-in 3838 df-ss 3845 df-nul 4181 df-if 4352 df-pw 4425 df-sn 4443 df-pr 4445 df-op 4449 df-uni 4714 df-br 4931 df-opab 4993 df-id 5313 df-xp 5414 df-rel 5415 df-cnv 5416 df-co 5417 df-dm 5418 df-rn 5419 df-res 5420 df-ima 5421 df-iota 6154 df-fun 6192 df-fv 6198 df-ov 6981 df-oprab 6982 df-mpo 6983 df-sh 28766 df-ch 28780 df-chj 28871 |
This theorem is referenced by: chj0i 29016 sshhococi 29107 |
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