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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 2813 | . . 3 ⊢ (𝐴 ∈ 𝑊 → 𝐴 ∈ V) | |
| 2 | fvssunirng 5657 | . . 3 ⊢ (𝐴 ∈ V → (𝐹‘𝐴) ⊆ ∪ ran 𝐹) | |
| 3 | 1, 2 | syl 14 | . 2 ⊢ (𝐴 ∈ 𝑊 → (𝐹‘𝐴) ⊆ ∪ ran 𝐹) |
| 4 | rnexg 4999 | . . 3 ⊢ (𝐹 ∈ 𝑉 → ran 𝐹 ∈ V) | |
| 5 | uniexg 4538 | . . 3 ⊢ (ran 𝐹 ∈ V → ∪ ran 𝐹 ∈ V) | |
| 6 | 4, 5 | syl 14 | . 2 ⊢ (𝐹 ∈ 𝑉 → ∪ ran 𝐹 ∈ V) |
| 7 | ssexg 4229 | . 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 2201 Vcvv 2801 ⊆ wss 3199 ∪ cuni 3894 ran crn 4728 ‘cfv 5328 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2203 ax-14 2204 ax-ext 2212 ax-sep 4208 ax-pow 4266 ax-pr 4301 ax-un 4532 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1810 df-eu 2081 df-mo 2082 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ral 2514 df-rex 2515 df-v 2803 df-un 3203 df-in 3205 df-ss 3212 df-pw 3655 df-sn 3676 df-pr 3677 df-op 3679 df-uni 3895 df-br 4090 df-opab 4152 df-cnv 4735 df-dm 4737 df-rn 4738 df-iota 5288 df-fv 5336 |
| This theorem is referenced by: fvex 5662 ovexg 6057 rdgivallem 6552 frecabex 6569 mapsnconst 6868 cc2lem 7490 addvalex 8069 uzennn 10704 seq1g 10731 seqp1g 10734 seqclg 10740 seqm1g 10742 seqfeq4g 10799 lswwrd 11169 ccatlen 11181 ccatval2 11184 ccatvalfn 11187 ccatalpha 11199 eqs1 11214 swrdlen 11242 swrdfv 11243 swrdwrdsymbg 11254 swrdswrd 11295 absval 11584 climmpt 11883 strnfvnd 13125 prdsex 13375 prdsval 13379 prdsbaslemss 13380 prdsbas 13382 prdsplusgfval 13390 prdsmulrfval 13392 pwsplusgval 13401 pwsmulrval 13402 imasex 13411 imasival 13412 imasbas 13413 imasplusg 13414 imasmulr 13415 imasaddfnlemg 13420 imasaddvallemg 13421 gsumfzval 13497 gsumval2 13503 gsumsplit1r 13504 gsumprval 13505 gsumfzz 13601 gsumwsubmcl 13602 gsumfzcl 13605 grpsubval 13652 mulgval 13732 mulgfng 13734 mulgnngsum 13737 znval 14674 znle 14675 znbaslemnn 14677 znbas 14682 znzrhval 14685 znzrhfo 14686 znleval 14691 iscnp4 14971 cnpnei 14972 uhgrspansubgrlem 16156 wlkvtxiedg 16225 wlkvtxiedgg 16226 wlk1walkdom 16239 wlklenvclwlk 16253 trlsegvdeglem3 16342 trlsegvdeglem5 16344 eupth2lem3fi 16356 depindlem1 16386 |
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