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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 3048 | . . 3 | |
2 | fvmpt2.1 | . . . 4 | |
3 | nfcv 2308 | . . . . 5 | |
4 | nfcsb1v 3078 | . . . . 5 | |
5 | csbeq1a 3054 | . . . . 5 | |
6 | 3, 4, 5 | cbvmpt 4077 | . . . 4 |
7 | 2, 6 | eqtri 2186 | . . 3 |
8 | 1, 7 | fvmptss2 5561 | . 2 |
9 | elex 2737 | . . . . . 6 | |
10 | 9 | alimi 1443 | . . . . 5 |
11 | 3 | nfel1 2319 | . . . . . 6 |
12 | 4 | nfel1 2319 | . . . . . 6 |
13 | 5 | eleq1d 2235 | . . . . . 6 |
14 | 11, 12, 13 | cbval 1742 | . . . . 5 |
15 | 10, 14 | sylib 121 | . . . 4 |
16 | 1 | eleq1d 2235 | . . . . 5 |
17 | 16 | spcgv 2813 | . . . 4 |
18 | 15, 17 | syl5 32 | . . 3 |
19 | 18 | impcom 124 | . 2 |
20 | ssexg 4121 | . 2 | |
21 | 8, 19, 20 | sylancr 411 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wal 1341 wceq 1343 wcel 2136 cvv 2726 csb 3045 wss 3116 cmpt 4043 cfv 5188 |
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 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-v 2728 df-sbc 2952 df-csb 3046 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-br 3983 df-opab 4044 df-mpt 4045 df-id 4271 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-iota 5153 df-fun 5190 df-fv 5196 |
This theorem is referenced by: mpofvex 6171 xpcomco 6792 |
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