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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 5654 | . 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 2800 ‘cfv 5324 |
| 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 4205 ax-pow 4262 ax-pr 4297 ax-un 4528 |
| 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 2802 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-opab 4149 df-cnv 4731 df-dm 4733 df-rn 4734 df-iota 5284 df-fv 5332 |
| This theorem is referenced by: uchoice 6295 rdgtfr 6535 rdgruledefgg 6536 mapsnf1o2 6860 ixpiinm 6888 mapsnen 6981 xpdom2 7010 mapxpen 7029 xpmapenlem 7030 phplem4 7036 ac6sfi 7082 fiintim 7118 pr2cv1 7394 acfun 7415 ccfunen 7476 ioof 10199 frec2uzrand 10660 frec2uzf1od 10661 frecfzennn 10681 hashinfom 11033 fsum3 11941 slotslfn 13101 ptex 13340 prdsvallem 13348 prdsval 13349 znval 14643 elply2 15452 |
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