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Related theorems GIF version |
| Description: Value of join in Cℋ. |
| Ref | Expression |
|---|---|
| chjvalt | ⊢ ((A ∈ Cℋ ∧ B ∈ Cℋ ) → (A ∨ℋ B) = (⊥ ‘(⊥ ‘(A ∪ B)))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | shjvalt 5322 | . 2 ⊢ ((A ∈ Sℋ ∧ B ∈ Sℋ ) → (A ∨ℋ B) = (⊥ ‘(⊥ ‘(A ∪ B)))) | |
| 2 | chsh 5131 | . 2 ⊢ (A ∈ Cℋ → A ∈ Sℋ ) | |
| 3 | chsh 5131 | . 2 ⊢ (B ∈ Cℋ → B ∈ Sℋ ) | |
| 4 | 1, 2, 3 | syl2an 349 | 1 ⊢ ((A ∈ Cℋ ∧ B ∈ Cℋ ) → (A ∨ℋ B) = (⊥ ‘(⊥ ‘(A ∪ B)))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ∧ wa 196 = wceq 1091 ∈ wcel 1092 ∪ cun 1485 ‘cfv 2422 (class class class)co 3001 Sℋ csh 4967 Cℋ cch 4968 ⊥cort 4969 ∨ℋ chj 4972 |
| This theorem is referenced by: chjval 5324 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 |