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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 4826 | . 2 ⊢ (𝐴 = 𝐶 → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐵〉) | |
| 2 | opeq2 4827 | . 2 ⊢ (𝐵 = 𝐷 → 〈𝐶, 𝐵〉 = 〈𝐶, 𝐷〉) | |
| 3 | 1, 2 | sylan9eq 2788 | 1 ⊢ ((𝐴 = 𝐶 ∧ 𝐵 = 𝐷) → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐷〉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 〈cop 4583 |
| 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 2705 |
| 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 2712 df-cleq 2725 df-clel 2808 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4285 df-if 4477 df-sn 4578 df-pr 4580 df-op 4584 |
| This theorem is referenced by: opeq12i 4831 opeq12d 4834 cbvopab 5167 cbvopabv 5168 opth 5421 copsex2t 5437 relop 5797 funopg 6523 fvn0ssdmfun 7016 fsn 7077 fnressn 7100 fmptsng 7111 fmptsnd 7112 tpres 7144 cbvoprab12 7444 cbvoprab12v 7445 eqopi 7966 f1o2ndf1 8061 tposoprab 8201 omeu 8509 brecop 8743 ecovcom 8756 ecovass 8757 ecovdi 8758 xpf1o 9062 addsrmo 10974 mulsrmo 10975 addsrpr 10976 mulsrpr 10977 addcnsr 11036 axcnre 11065 seqeq1 13921 opfi1uzind 14428 fsumcnv 15690 fprodcnv 15900 eucalgval2 16502 xpstopnlem1 23734 qustgplem 24046 finsumvtxdg2size 29540 brabgaf 32600 qqhval2 34006 brsegle 36163 copsex2d 37194 finxpreclem3 37448 eqrelf 38302 dvnprodlem1 46058 or2expropbilem1 47146 or2expropbilem2 47147 funop1 47397 ich2exprop 47585 ichnreuop 47586 ichreuopeq 47587 reuopreuprim 47640 uspgrsprf1 48261 |
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