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| Mirrors > Home > ILE Home > Th. List > opeq12 | Unicode version | ||
| Description: Equality theorem for ordered pairs. (Contributed by NM, 28-May-1995.) |
| Ref | Expression |
|---|---|
| opeq12 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opeq1 3888 |
. 2
| |
| 2 | opeq2 3889 |
. 2
| |
| 3 | 1, 2 | sylan9eq 2287 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-un 3218 df-sn 3700 df-pr 3701 df-op 3703 |
| This theorem is referenced by: opeq12i 3893 opeq12d 3896 cbvopab 4186 opth 4358 copsex2t 4366 copsex2g 4367 relop 4910 funopg 5391 fsn 5854 fnressn 5875 cbvoprab12 6135 eqopi 6379 f1o2ndf1 6437 tposoprab 6524 brecop 6872 th3q 6887 ecovcom 6889 ecovicom 6890 ecovass 6891 ecoviass 6892 ecovdi 6893 ecovidi 6894 xpf1o 7110 1qec 7719 enq0sym 7763 addnq0mo 7778 mulnq0mo 7779 addnnnq0 7780 mulnnnq0 7781 distrnq0 7790 mulcomnq0 7791 addassnq0 7793 addsrmo 8074 mulsrmo 8075 addsrpr 8076 mulsrpr 8077 axcnre 8212 fsumcnv 12148 fprodcnv 12336 eucalgval2 12775 |
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