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Related theorems GIF version |
| Description: Commutative law for join in Cℋ. |
| Ref | Expression |
|---|---|
| ch0le.1 | ⊢ A ∈ Cℋ |
| chjcl.2 | ⊢ B ∈ Cℋ |
| Ref | Expression |
|---|---|
| chjcom | ⊢ (A ∨ℋ B) = (B ∨ℋ A) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ch0le.1 | . . 3 ⊢ A ∈ Cℋ | |
| 2 | 1 | chshi 5132 | . 2 ⊢ A ∈ Sℋ |
| 3 | chjcl.2 | . . 3 ⊢ B ∈ Cℋ | |
| 4 | 3 | chshi 5132 | . 2 ⊢ B ∈ Sℋ |
| 5 | 2, 4 | shjcom 5341 | 1 ⊢ (A ∨ℋ B) = (B ∨ℋ A) |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1091 ∈ wcel 1092 (class class class)co 3001 Cℋ cch 4968 ∨ℋ chj 4972 |
| This theorem is referenced by: chub2 5391 chnle 5406 cmcm2 5502 cmbr3 5509 qlax2 5521 3oalem5 5556 pjcj 5575 cvexch 5760 mdsymlem1 5776 mdsymlem6 5781 mdsymlem8 5783 sumdmd 5787 |
| 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-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 ax-hilex 4983 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-3an 583 df-ex 679 df-sb 853 df-eu 1009 df-mo 1010 df-clab 1093 df-cleq 1097 df-clel 1099 df-ral 1205 df-rex 1206 df-v 1349 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-nul 1708 df-pw 1799 df-sn 1811 df-pr 1812 df-op 1815 df-uni 1920 df-br 2063 df-opab 2098 df-id 2125 df-xp 2424 df-rel 2425 df-cnv 2426 df-co 2427 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fun 2432 df-fv 2438 df-opr 3003 df-oprab 3004 df-sh 5114 df-ch 5127 df-chj 5277 |