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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 5691 | . 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 2205 Vcvv 2815 ‘cfv 5354 |
| 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-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-opab 4174 df-cnv 4759 df-dm 4761 df-rn 4762 df-iota 5314 df-fv 5362 |
| This theorem is referenced by: uchoice 6333 rdgtfr 6607 rdgruledefgg 6608 mapsnf1o2 6933 ixpiinm 6961 mapsnen 7055 xpdom2 7084 mapxpen 7103 xpmapenlem 7104 phplem4 7111 ac6sfi 7157 fiintim 7193 pr2cv1 7494 acfun 7516 ccfunen 7583 ioof 10310 frec2uzrand 10774 frec2uzf1od 10775 frecfzennn 10795 hashinfom 11149 fsum3 12081 slotslfn 13259 ptex 13498 prdsvallem 13506 prdsval 13507 znval 14833 elply2 15649 depindlem1 16550 |
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