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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 2833 | . . 3 ⊢ (𝐴 ∈ 𝑊 → 𝐴 ∈ V) | |
| 2 | fvssunirng 5713 | . . 3 ⊢ (𝐴 ∈ V → (𝐹‘𝐴) ⊆ ∪ ran 𝐹) | |
| 3 | 1, 2 | syl 14 | . 2 ⊢ (𝐴 ∈ 𝑊 → (𝐹‘𝐴) ⊆ ∪ ran 𝐹) |
| 4 | rnexg 5049 | . . 3 ⊢ (𝐹 ∈ 𝑉 → ran 𝐹 ∈ V) | |
| 5 | uniexg 4587 | . . 3 ⊢ (ran 𝐹 ∈ V → ∪ ran 𝐹 ∈ V) | |
| 6 | 4, 5 | syl 14 | . 2 ⊢ (𝐹 ∈ 𝑉 → ∪ ran 𝐹 ∈ V) |
| 7 | ssexg 4274 | . 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 |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ∈ wcel 2209 Vcvv 2821 ⊆ wss 3220 ∪ cuni 3935 ran crn 4777 ‘cfv 5380 |
| 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 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 |
| 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 4132 df-opab 4194 df-cnv 4784 df-dm 4786 df-rn 4787 df-iota 5340 df-fv 5388 |
| This theorem is used by: fvex 5718 ovexg 6122 suppval1 6483 suppimacnvfn 6490 suppssrst 6505 suppssrgst 6506 rdgivallem 6656 frecabex 6673 mapsnconst 6981 mapsnend 7104 cc2lem 7639 addvalex 8218 uzennn 10895 seq1g 10922 seqp1g 10925 seqclg 10931 seqm1g 10933 seqfeq4g 10990 lswwrd 11374 ccatlen 11386 ccatval2 11389 ccatvalfn 11392 ccatalpha 11404 eqs1 11419 swrdlen 11447 swrdfv 11448 swrdwrdsymbg 11459 swrdswrd 11500 absval 11790 climmpt 12092 strnfvnd 13431 imasex 13686 imasival 13687 imasbas 13688 imasplusg 13689 imasmulr 13690 imasaddfnlemg 13695 imasaddvallemg 13696 gzsumfzval 13771 gzsumval2 13774 gzsumsplit1r 13775 gzsumwsubmcl 13861 gzsumcl 13864 grpsubval 13911 mulgval 13985 mulgfng 13987 mulgnngzsum 13990 cntrval 14152 prdsex 14280 prdsval 14281 prdsbaslemss 14282 prdsbas 14284 prdsplusgfval 14292 prdsmulrfval 14294 pwsplusgval 14316 pwsmulrval 14317 znval 15081 znle 15082 znbaslemnn 15084 znbas 15089 znzrhval 15092 znzrhfo 15093 znleval 15098 iscnp4 15456 cnpnei 15457 uhgrspansubgrlem 16734 wlkvtxiedg 16803 wlkvtxiedgg 16804 wlk1walkdom 16817 wlklenvclwlk 16831 trlsegvdeglem3 16920 trlsegvdeglem5 16922 eupth2lem3fi 16934 depindlem1 16964 |
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