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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 4804 | . 2 ⊢ (𝐴 = 𝐶 → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐵〉) | |
| 2 | opeq2 4805 | . 2 ⊢ (𝐵 = 𝐷 → 〈𝐶, 𝐵〉 = 〈𝐶, 𝐷〉) | |
| 3 | 1, 2 | sylan9eq 2794 | 1 ⊢ ((𝐴 = 𝐶 ∧ 𝐵 = 𝐷) → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐷〉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 396 = wceq 1547 〈cop 4561 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2711 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-sb 2074 df-clab 2718 df-cleq 2731 df-clel 2814 df-rab 3392 df-v 3433 df-dif 3886 df-un 3888 df-ss 3900 df-nul 4262 df-if 4455 df-sn 4556 df-pr 4558 df-op 4562 |
| This theorem is referenced by: opeq12i 4809 opeq12d 4812 cbvopab 5144 cbvopabv 5145 opth 5416 copsex2t 5433 relop 5792 funopg 6519 fvn0ssdmfun 7015 fsn 7077 fnressn 7101 fmptsng 7112 fmptsnd 7113 tpres 7145 cbvoprab12 7445 cbvoprab12v 7446 eqopi 7967 f1o2ndf1 8061 tposoprab 8202 omeu 8510 brecop 8747 ecovcom 8760 ecovass 8761 ecovdi 8762 xpf1o 9067 addsrmo 10987 mulsrmo 10988 addsrpr 10989 mulsrpr 10990 addcnsr 11049 axcnre 11078 seqeq1 13957 opfi1uzind 14464 fsumcnv 15726 fprodcnv 15939 eucalgval2 16541 xpstopnlem1 23792 qustgplem 24104 finsumvtxdg2size 29637 brabgaf 32698 qqhval2 34166 brsegle 36336 copsex2d 37499 finxpreclem3 37755 eqrelf 38625 dvnprodlem1 46389 or2expropbilem1 47495 or2expropbilem2 47496 funop1 47746 ich2exprop 47946 ichnreuop 47947 ichreuopeq 47948 reuopreuprim 48001 uspgrsprf1 48638 |
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