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Mirrors > Home > MPE Home > Th. List > cnvsng | Structured version Visualization version Unicode version |
Description: Converse of a singleton of an ordered pair. (Contributed by NM, 23-Jan-2015.) |
Ref | Expression |
---|---|
cnvsng |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opeq1 4402 | . . . . 5 | |
2 | 1 | sneqd 4189 | . . . 4 |
3 | 2 | cnveqd 5298 | . . 3 |
4 | opeq2 4403 | . . . 4 | |
5 | 4 | sneqd 4189 | . . 3 |
6 | 3, 5 | eqeq12d 2637 | . 2 |
7 | opeq2 4403 | . . . . 5 | |
8 | 7 | sneqd 4189 | . . . 4 |
9 | 8 | cnveqd 5298 | . . 3 |
10 | opeq1 4402 | . . . 4 | |
11 | 10 | sneqd 4189 | . . 3 |
12 | 9, 11 | eqeq12d 2637 | . 2 |
13 | vex 3203 | . . 3 | |
14 | vex 3203 | . . 3 | |
15 | 13, 14 | cnvsn 5618 | . 2 |
16 | 6, 12, 15 | vtocl2g 3270 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wceq 1483 wcel 1990 csn 4177 cop 4183 ccnv 5113 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-br 4654 df-opab 4713 df-xp 5120 df-rel 5121 df-cnv 5122 |
This theorem is referenced by: opswap 5622 funsng 5937 f1oprswap 6180 |
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