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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 3052 | . . 3 | |
2 | fvmpt2.1 | . . . 4 | |
3 | nfcv 2312 | . . . . 5 | |
4 | nfcsb1v 3082 | . . . . 5 | |
5 | csbeq1a 3058 | . . . . 5 | |
6 | 3, 4, 5 | cbvmpt 4084 | . . . 4 |
7 | 2, 6 | eqtri 2191 | . . 3 |
8 | 1, 7 | fvmptss2 5571 | . 2 |
9 | elex 2741 | . . . . . 6 | |
10 | 9 | alimi 1448 | . . . . 5 |
11 | 3 | nfel1 2323 | . . . . . 6 |
12 | 4 | nfel1 2323 | . . . . . 6 |
13 | 5 | eleq1d 2239 | . . . . . 6 |
14 | 11, 12, 13 | cbval 1747 | . . . . 5 |
15 | 10, 14 | sylib 121 | . . . 4 |
16 | 1 | eleq1d 2239 | . . . . 5 |
17 | 16 | spcgv 2817 | . . . 4 |
18 | 15, 17 | syl5 32 | . . 3 |
19 | 18 | impcom 124 | . 2 |
20 | ssexg 4128 | . 2 | |
21 | 8, 19, 20 | sylancr 412 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wal 1346 wceq 1348 wcel 2141 cvv 2730 csb 3049 wss 3121 cmpt 4050 cfv 5198 |
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 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-rex 2454 df-v 2732 df-sbc 2956 df-csb 3050 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-br 3990 df-opab 4051 df-mpt 4052 df-id 4278 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-iota 5160 df-fun 5200 df-fv 5206 |
This theorem is referenced by: mpofvex 6182 xpcomco 6804 |
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