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Mirrors > Home > MPE Home > Th. List > opeq12i | Structured version Visualization version GIF version |
Description: Equality inference for ordered pairs. (Contributed by NM, 16-Dec-2006.) (Proof shortened by Eric Schmidt, 4-Apr-2007.) |
Ref | Expression |
---|---|
opeq1i.1 | ⊢ 𝐴 = 𝐵 |
opeq12i.2 | ⊢ 𝐶 = 𝐷 |
Ref | Expression |
---|---|
opeq12i | ⊢ 〈𝐴, 𝐶〉 = 〈𝐵, 𝐷〉 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opeq1i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | opeq12i.2 | . 2 ⊢ 𝐶 = 𝐷 | |
3 | opeq12 4342 | . 2 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → 〈𝐴, 𝐶〉 = 〈𝐵, 𝐷〉) | |
4 | 1, 2, 3 | mp2an 704 | 1 ⊢ 〈𝐴, 𝐶〉 = 〈𝐵, 𝐷〉 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1475 〈cop 4131 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-rab 2905 df-v 3175 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-sn 4126 df-pr 4128 df-op 4132 |
This theorem is referenced by: elxp6 7091 addcompq 9651 mulcompq 9653 addassnq 9659 mulassnq 9660 distrnq 9662 1lt2nq 9674 axi2m1 9859 om2uzrdg 12617 axlowdimlem6 25627 nvop2 26847 nvvop 26848 phop 27057 hhsssh 27510 rngoi 32868 isdrngo1 32925 konigsbergvtx 41414 konigsbergiedg 41415 |
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