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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 4834 | . 2 ⊢ (𝐴 = 𝐶 → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐵〉) | |
| 2 | opeq2 4835 | . 2 ⊢ (𝐵 = 𝐷 → 〈𝐶, 𝐵〉 = 〈𝐶, 𝐷〉) | |
| 3 | 1, 2 | sylan9eq 2820 | 1 ⊢ ((𝐴 = 𝐶 ∧ 𝐵 = 𝐷) → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐷〉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1563 〈cop 4591 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-ext 2737 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-sb 2094 df-clab 2744 df-cleq 2757 df-clel 2840 df-rab 3418 df-v 3459 df-dif 3910 df-un 3912 df-ss 3924 df-nul 4289 df-if 4484 df-sn 4586 df-pr 4588 df-op 4592 |
| This theorem is referenced by: opeq12i 4839 opeq12d 4842 cbvopab 5177 cbvopabv 5178 opth 5449 copsex2t 5466 relop 5827 funopg 6559 fvn0ssdmfun 7059 fsn 7121 fnressn 7145 fmptsng 7156 fmptsnd 7157 tpres 7189 cbvoprab12 7489 cbvoprab12v 7490 eqopi 8010 f1o2ndf1 8105 tposoprab 8246 omeu 8558 brecop 8796 ecovcom 8809 ecovass 8810 ecovdi 8811 xpf1o 9115 addsrmo 11046 mulsrmo 11047 addsrpr 11048 mulsrpr 11049 addcnsr 11108 axcnre 11137 seqeq1 14031 opfi1uzind 14538 fsumcnv 15814 fprodcnv 16027 eucalgval2 16629 xpstopnlem1 23927 qustgplem 24239 finsumvtxdg2size 29809 brabgaf 32863 qqhval2 34289 brsegle 36471 copsex2d 37643 finxpreclem3 37899 eqrelf 38769 dvnprodlem1 46518 or2expropbilem1 47624 or2expropbilem2 47625 funop1 47875 ich2exprop 48075 ichnreuop 48076 ichreuopeq 48077 reuopreuprim 48130 uspgrsprf1 48767 |
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