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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 4840 | . 2 ⊢ (𝐴 = 𝐶 → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐵〉) | |
| 2 | opeq2 4841 | . 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 |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 〈cop 4597 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 |
| This theorem is used by: opeq12i 4845 opeq12d 4848 cbvopab 5185 cbvopabv 5186 opth 5460 copsex2t 5477 relop 5838 funopg 6574 fvn0ssdmfun 7073 fsn 7135 fnressn 7161 fmptsng 7172 fmptsnd 7173 tpres 7206 cbvoprab12 7508 cbvoprab12v 7509 eqopi 8028 f1o2ndf1 8123 tposoprab 8264 omeu 8576 brecop 8814 ecovcom 8827 ecovass 8828 ecovdi 8829 xpf1o 9134 addsrmo 11073 mulsrmo 11074 addsrpr 11075 mulsrpr 11076 addcnsr 11135 axcnre 11164 seqeq1 14058 opfi1uzind 14566 fsumcnv 15847 fprodcnv 16060 eucalgval2 16661 degenmgm2nfun 19039 xpstopnlem1 24017 qustgplem 24329 finsumvtxdg2size 29958 brabgaf 33022 qqhval2 34436 brsegle 36637 copsex2d 37840 finxpreclem3 38096 eqrelf 38965 dvnprodlem1 46718 or2expropbilem1 47827 or2expropbilem2 47828 funop1 48078 ich2exprop 48278 ichnreuop 48279 ichreuopeq 48280 reuopreuprim 48333 uspgrsprf1 48970 |
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