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| Mirrors > Home > ILE Home > Th. List > fvexg | GIF version | ||
| Description: Evaluating a set function at a set exists. (Contributed by Mario Carneiro and Jim Kingdon, 28-May-2019.) |
| Ref | Expression |
|---|---|
| fvexg | ⊢ ((𝐹 ∈ 𝑉 ∧ 𝐴 ∈ 𝑊) → (𝐹‘𝐴) ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elex 2788 | . . 3 ⊢ (𝐴 ∈ 𝑊 → 𝐴 ∈ V) | |
| 2 | fvssunirng 5614 | . . 3 ⊢ (𝐴 ∈ V → (𝐹‘𝐴) ⊆ ∪ ran 𝐹) | |
| 3 | 1, 2 | syl 14 | . 2 ⊢ (𝐴 ∈ 𝑊 → (𝐹‘𝐴) ⊆ ∪ ran 𝐹) |
| 4 | rnexg 4962 | . . 3 ⊢ (𝐹 ∈ 𝑉 → ran 𝐹 ∈ V) | |
| 5 | uniexg 4504 | . . 3 ⊢ (ran 𝐹 ∈ V → ∪ ran 𝐹 ∈ V) | |
| 6 | 4, 5 | syl 14 | . 2 ⊢ (𝐹 ∈ 𝑉 → ∪ ran 𝐹 ∈ V) |
| 7 | ssexg 4199 | . 2 ⊢ (((𝐹‘𝐴) ⊆ ∪ ran 𝐹 ∧ ∪ ran 𝐹 ∈ V) → (𝐹‘𝐴) ∈ V) | |
| 8 | 3, 6, 7 | syl2anr 290 | 1 ⊢ ((𝐹 ∈ 𝑉 ∧ 𝐴 ∈ 𝑊) → (𝐹‘𝐴) ∈ V) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2178 Vcvv 2776 ⊆ wss 3174 ∪ cuni 3864 ran crn 4694 ‘cfv 5290 |
| 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 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2180 ax-14 2181 ax-ext 2189 ax-sep 4178 ax-pow 4234 ax-pr 4269 ax-un 4498 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ral 2491 df-rex 2492 df-v 2778 df-un 3178 df-in 3180 df-ss 3187 df-pw 3628 df-sn 3649 df-pr 3650 df-op 3652 df-uni 3865 df-br 4060 df-opab 4122 df-cnv 4701 df-dm 4703 df-rn 4704 df-iota 5251 df-fv 5298 |
| This theorem is referenced by: fvex 5619 ovexg 6001 rdgivallem 6490 frecabex 6507 mapsnconst 6804 cc2lem 7413 addvalex 7992 uzennn 10618 seq1g 10645 seqp1g 10648 seqclg 10654 seqm1g 10656 seqfeq4g 10713 lswwrd 11077 ccatlen 11089 ccatval2 11092 ccatvalfn 11095 eqs1 11120 swrdlen 11143 swrdfv 11144 swrdwrdsymbg 11155 swrdswrd 11196 absval 11427 climmpt 11726 strnfvnd 12967 prdsex 13216 prdsval 13220 prdsbaslemss 13221 prdsbas 13223 prdsplusgfval 13231 prdsmulrfval 13233 pwsplusgval 13242 pwsmulrval 13243 imasex 13252 imasival 13253 imasbas 13254 imasplusg 13255 imasmulr 13256 imasaddfnlemg 13261 imasaddvallemg 13262 gsumfzval 13338 gsumval2 13344 gsumsplit1r 13345 gsumprval 13346 gsumfzz 13442 gsumwsubmcl 13443 gsumfzcl 13446 grpsubval 13493 mulgval 13573 mulgfng 13575 mulgnngsum 13578 znval 14513 znle 14514 znbaslemnn 14516 znbas 14521 znzrhval 14524 znzrhfo 14525 znleval 14530 iscnp4 14805 cnpnei 14806 |
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