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| Mirrors > Home > ILE Home > Th. List > fvex | GIF version | ||
| Description: Evaluating a set function at a set exists. (Contributed by Mario Carneiro and Jim Kingdon, 28-May-2019.) |
| Ref | Expression |
|---|---|
| fvex.1 | ⊢ 𝐹 ∈ 𝑉 |
| fvex.2 | ⊢ 𝐴 ∈ 𝑊 |
| Ref | Expression |
|---|---|
| fvex | ⊢ (𝐹‘𝐴) ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fvex.1 | . 2 ⊢ 𝐹 ∈ 𝑉 | |
| 2 | fvex.2 | . 2 ⊢ 𝐴 ∈ 𝑊 | |
| 3 | fvexg 5651 | . 2 ⊢ ((𝐹 ∈ 𝑉 ∧ 𝐴 ∈ 𝑊) → (𝐹‘𝐴) ∈ V) | |
| 4 | 1, 2, 3 | mp2an 426 | 1 ⊢ (𝐹‘𝐴) ∈ V |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2200 Vcvv 2799 ‘cfv 5321 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4259 ax-pr 4294 ax-un 4525 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2801 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-br 4084 df-opab 4146 df-cnv 4728 df-dm 4730 df-rn 4731 df-iota 5281 df-fv 5329 |
| This theorem is referenced by: uchoice 6292 rdgtfr 6531 rdgruledefgg 6532 mapsnf1o2 6856 ixpiinm 6884 mapsnen 6977 xpdom2 7003 mapxpen 7022 xpmapenlem 7023 phplem4 7029 ac6sfi 7073 fiintim 7109 pr2cv1 7384 acfun 7405 ccfunen 7466 ioof 10184 frec2uzrand 10644 frec2uzf1od 10645 frecfzennn 10665 hashinfom 11017 fsum3 11919 slotslfn 13079 ptex 13318 prdsvallem 13326 prdsval 13327 znval 14621 elply2 15430 |
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