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| Mirrors > Home > ILE Home > Th. List > fvex | Unicode version | ||
| Description: Evaluating a set function at a set exists. (Contributed by Mario Carneiro and Jim Kingdon, 28-May-2019.) |
| Ref | Expression |
|---|---|
| fvex.1 |
|
| fvex.2 |
|
| Ref | Expression |
|---|---|
| fvex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fvex.1 |
. 2
| |
| 2 | fvex.2 |
. 2
| |
| 3 | fvexg 5714 |
. 2
| |
| 4 | 1, 2, 3 | mp2an 430 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-un 4578 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-cnv 4782 df-dm 4784 df-rn 4785 df-iota 5337 df-fv 5385 |
| This theorem is used by: uchoice 6371 rdgtfr 6645 rdgruledefgg 6646 mapsnf1o2 6978 ixpiinm 7006 mapsnen 7100 xpdom2 7129 mapxpen 7148 xpmapenlem 7149 phplem4 7156 ac6sfi 7202 fiintim 7238 pr2cv1 7542 acfun 7564 ccfunen 7631 ioof 10384 frec2uzrand 10857 frec2uzf1od 10858 frecfzennn 10878 hashinfom 11233 fsum3 12173 ballotfilem7 13331 slotslfn 13430 ptex 13671 prdsvallem 13674 prdsval 14257 znval 15055 elply2 15927 depindlem1 16913 |
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