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| Mirrors > Home > MPE Home > Th. List > opeq12 | Structured version Visualization version GIF version | ||
| Description: Equality theorem for ordered pairs. (Contributed by NM, 28-May-1995.) |
| Ref | Expression |
|---|---|
| opeq12 | ⊢ ((𝐴 = 𝐶 ∧ 𝐵 = 𝐷) → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐷〉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opeq1 4827 | . 2 ⊢ (𝐴 = 𝐶 → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐵〉) | |
| 2 | opeq2 4828 | . 2 ⊢ (𝐵 = 𝐷 → 〈𝐶, 𝐵〉 = 〈𝐶, 𝐷〉) | |
| 3 | 1, 2 | sylan9eq 2789 | 1 ⊢ ((𝐴 = 𝐶 ∧ 𝐵 = 𝐷) → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐷〉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 〈cop 4584 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2713 df-cleq 2726 df-clel 2809 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4284 df-if 4478 df-sn 4579 df-pr 4581 df-op 4585 |
| This theorem is referenced by: opeq12i 4832 opeq12d 4835 cbvopab 5168 cbvopabv 5169 opth 5422 copsex2t 5438 relop 5797 funopg 6524 fvn0ssdmfun 7017 fsn 7078 fnressn 7101 fmptsng 7112 fmptsnd 7113 tpres 7145 cbvoprab12 7445 cbvoprab12v 7446 eqopi 7967 f1o2ndf1 8062 tposoprab 8202 omeu 8510 brecop 8745 ecovcom 8758 ecovass 8759 ecovdi 8760 xpf1o 9065 addsrmo 10982 mulsrmo 10983 addsrpr 10984 mulsrpr 10985 addcnsr 11044 axcnre 11073 seqeq1 13925 opfi1uzind 14432 fsumcnv 15694 fprodcnv 15904 eucalgval2 16506 xpstopnlem1 23751 qustgplem 24063 finsumvtxdg2size 29573 brabgaf 32633 qqhval2 34088 brsegle 36251 copsex2d 37283 finxpreclem3 37537 eqrelf 38392 dvnprodlem1 46132 or2expropbilem1 47220 or2expropbilem2 47221 funop1 47471 ich2exprop 47659 ichnreuop 47660 ichreuopeq 47661 reuopreuprim 47714 uspgrsprf1 48335 |
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