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Mirrors > Home > ILE Home > Th. List > zfpair2 | Unicode version |
Description: Derive the abbreviated version of the Axiom of Pairing from ax-pr 4126. (Contributed by NM, 14-Nov-2006.) |
Ref | Expression |
---|---|
zfpair2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-pr 4126 | . . . 4 | |
2 | 1 | bm1.3ii 4044 | . . 3 |
3 | dfcleq 2131 | . . . . 5 | |
4 | vex 2684 | . . . . . . . 8 | |
5 | 4 | elpr 3543 | . . . . . . 7 |
6 | 5 | bibi2i 226 | . . . . . 6 |
7 | 6 | albii 1446 | . . . . 5 |
8 | 3, 7 | bitri 183 | . . . 4 |
9 | 8 | exbii 1584 | . . 3 |
10 | 2, 9 | mpbir 145 | . 2 |
11 | 10 | issetri 2690 | 1 |
Colors of variables: wff set class |
Syntax hints: wb 104 wo 697 wal 1329 wceq 1331 wex 1468 wcel 1480 cvv 2681 cpr 3523 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-sep 4041 ax-pr 4126 |
This theorem depends on definitions: df-bi 116 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-v 2683 df-un 3070 df-sn 3528 df-pr 3529 |
This theorem is referenced by: prexg 4128 onintexmid 4482 funopg 5152 |
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