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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 4816 | . 2 ⊢ (𝐴 = 𝐶 → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐵〉) | |
| 2 | opeq2 4817 | . 2 ⊢ (𝐵 = 𝐷 → 〈𝐶, 𝐵〉 = 〈𝐶, 𝐷〉) | |
| 3 | 1, 2 | sylan9eq 2791 | 1 ⊢ ((𝐴 = 𝐶 ∧ 𝐵 = 𝐷) → 〈𝐴, 𝐵〉 = 〈𝐶, 𝐷〉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 〈cop 4573 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-ss 3906 df-nul 4274 df-if 4467 df-sn 4568 df-pr 4570 df-op 4574 |
| This theorem is referenced by: opeq12i 4821 opeq12d 4824 cbvopab 5157 cbvopabv 5158 opth 5429 copsex2t 5446 relop 5805 funopg 6532 fvn0ssdmfun 7026 fsn 7088 fnressn 7112 fmptsng 7123 fmptsnd 7124 tpres 7156 cbvoprab12 7456 cbvoprab12v 7457 eqopi 7978 f1o2ndf1 8072 tposoprab 8212 omeu 8520 brecop 8757 ecovcom 8770 ecovass 8771 ecovdi 8772 xpf1o 9077 addsrmo 10996 mulsrmo 10997 addsrpr 10998 mulsrpr 10999 addcnsr 11058 axcnre 11087 seqeq1 13966 opfi1uzind 14473 fsumcnv 15735 fprodcnv 15948 eucalgval2 16550 xpstopnlem1 23774 qustgplem 24086 finsumvtxdg2size 29619 brabgaf 32679 qqhval2 34126 brsegle 36290 copsex2d 37453 finxpreclem3 37709 eqrelf 38579 dvnprodlem1 46374 or2expropbilem1 47480 or2expropbilem2 47481 funop1 47731 ich2exprop 47931 ichnreuop 47932 ichreuopeq 47933 reuopreuprim 47986 uspgrsprf1 48623 |
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