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Related theorems GIF version |
| Description: Convert an operation closure law to class notation. |
| Ref | Expression |
|---|---|
| caoprcl.1 | ⊢ ((x ∈ S ∧ y ∈ S) → (xFy) ∈ S) |
| Ref | Expression |
|---|---|
| caoprcl | ⊢ ((A ∈ S ∧ B ∈ S) → (AFB) ∈ S) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opreq1 3006 | . . 3 ⊢ (x = A → (xFy) = (AFy)) | |
| 2 | 1 | eleq1d 1155 | . 2 ⊢ (x = A → ((xFy) ∈ S ↔ (AFy) ∈ S)) |
| 3 | opreq2 3007 | . . 3 ⊢ (y = B → (AFy) = (AFB)) | |
| 4 | 3 | eleq1d 1155 | . 2 ⊢ (y = B → ((AFy) ∈ S ↔ (AFB) ∈ S)) |
| 5 | caoprcl.1 | . 2 ⊢ ((x ∈ S ∧ y ∈ S) → (xFy) ∈ S) | |
| 6 | 2, 4, 5 | vtocl2ga 1388 | 1 ⊢ ((A ∈ S ∧ B ∈ S) → (AFB) ∈ S) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ∧ wa 196 = wceq 1091 ∈ wcel 1092 (class class class)co 3001 |
| This theorem is referenced by: ecopoprtrn 3247 eceqopreq 3249 genpcl 3905 genpass 3906 |
| 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-pow 1077 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-ex 679 df-sb 853 df-clab 1093 df-cleq 1097 df-clel 1099 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-xp 2424 df-cnv 2426 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fv 2438 df-opr 3003 |