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Mirrors > Home > ILE Home > Th. List > opeq12i | Unicode 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 |
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opeq12i.2 |
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Ref | Expression |
---|---|
opeq12i |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opeq1i.1 |
. 2
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2 | opeq12i.2 |
. 2
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3 | opeq12 3795 |
. 2
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4 | 1, 2, 3 | mp2an 426 |
1
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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 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2171 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2176 df-cleq 2182 df-clel 2185 df-nfc 2321 df-v 2754 df-un 3148 df-sn 3613 df-pr 3614 df-op 3616 |
This theorem is referenced by: addpinq1 7481 genipv 7526 ltexpri 7630 recexpr 7655 cauappcvgprlemladdru 7673 cauappcvgprlemladdrl 7674 cauappcvgpr 7679 caucvgprlemcl 7693 caucvgprlemladdrl 7695 caucvgpr 7699 caucvgprprlemval 7705 caucvgprprlemnbj 7710 caucvgprprlemmu 7712 caucvgprprlemclphr 7722 caucvgprprlemaddq 7725 caucvgprprlem1 7726 caucvgprprlem2 7727 caucvgsr 7819 pitonnlem1 7862 axi2m1 7892 axcaucvg 7917 |
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