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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 3141 |
. . 3
| |
| 2 | fvmpt2.1 |
. . . 4
| |
| 3 | nfcv 2384 |
. . . . 5
| |
| 4 | nfcsb1v 3171 |
. . . . 5
| |
| 5 | csbeq1a 3147 |
. . . . 5
| |
| 6 | 3, 4, 5 | cbvmpt 4205 |
. . . 4
|
| 7 | 2, 6 | eqtri 2253 |
. . 3
|
| 8 | 1, 7 | fvmptss2 5752 |
. 2
|
| 9 | elex 2825 |
. . . . . 6
| |
| 10 | 9 | alimi 1504 |
. . . . 5
|
| 11 | 3 | nfel1 2395 |
. . . . . 6
|
| 12 | 4 | nfel1 2395 |
. . . . . 6
|
| 13 | 5 | eleq1d 2301 |
. . . . . 6
|
| 14 | 11, 12, 13 | cbval 1803 |
. . . . 5
|
| 15 | 10, 14 | sylib 122 |
. . . 4
|
| 16 | 1 | eleq1d 2301 |
. . . . 5
|
| 17 | 16 | spcgv 2904 |
. . . 4
|
| 18 | 15, 17 | syl5 32 |
. . 3
|
| 19 | 18 | impcom 125 |
. 2
|
| 20 | ssexg 4249 |
. 2
| |
| 21 | 8, 19, 20 | sylancr 414 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2206 ax-ext 2214 ax-sep 4228 ax-pow 4287 ax-pr 4322 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-v 2815 df-sbc 3043 df-csb 3139 df-un 3215 df-in 3217 df-ss 3224 df-pw 3671 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-br 4110 df-opab 4172 df-mpt 4173 df-id 4414 df-xp 4755 df-rel 4756 df-cnv 4757 df-co 4758 df-iota 5312 df-fun 5354 df-fv 5360 |
| This theorem is referenced by: mpofvex 6401 xpcomco 7077 lssex 14502 mopnset 14700 metuex 14703 |
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