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Mirrors > Home > ILE Home > Th. List > mptfvex | Unicode version |
Description: Sufficient condition for a maps-to notation to be set-like. (Contributed by Mario Carneiro, 3-Jul-2019.) |
Ref | Expression |
---|---|
fvmpt2.1 |
Ref | Expression |
---|---|
mptfvex |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | csbeq1 2855 | . . 3 | |
2 | fvmpt2.1 | . . . 4 | |
3 | nfcv 2178 | . . . . 5 | |
4 | nfcsb1v 2882 | . . . . 5 | |
5 | csbeq1a 2860 | . . . . 5 | |
6 | 3, 4, 5 | cbvmpt 3851 | . . . 4 |
7 | 2, 6 | eqtri 2060 | . . 3 |
8 | 1, 7 | fvmptss2 5247 | . 2 |
9 | elex 2566 | . . . . . 6 | |
10 | 9 | alimi 1344 | . . . . 5 |
11 | 3 | nfel1 2188 | . . . . . 6 |
12 | 4 | nfel1 2188 | . . . . . 6 |
13 | 5 | eleq1d 2106 | . . . . . 6 |
14 | 11, 12, 13 | cbval 1637 | . . . . 5 |
15 | 10, 14 | sylib 127 | . . . 4 |
16 | 1 | eleq1d 2106 | . . . . 5 |
17 | 16 | spcgv 2640 | . . . 4 |
18 | 15, 17 | syl5 28 | . . 3 |
19 | 18 | impcom 116 | . 2 |
20 | ssexg 3896 | . 2 | |
21 | 8, 19, 20 | sylancr 393 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 97 wal 1241 wceq 1243 wcel 1393 cvv 2557 csb 2852 wss 2917 cmpt 3818 cfv 4902 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-sep 3875 ax-pow 3927 ax-pr 3944 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ral 2311 df-rex 2312 df-v 2559 df-sbc 2765 df-csb 2853 df-un 2922 df-in 2924 df-ss 2931 df-pw 3361 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-br 3765 df-opab 3819 df-mpt 3820 df-id 4030 df-xp 4351 df-rel 4352 df-cnv 4353 df-co 4354 df-iota 4867 df-fun 4904 df-fv 4910 |
This theorem is referenced by: mpt2fvex 5829 xpcomco 6300 |
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