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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 2814 | . . 3 ⊢ (𝐴 ∈ 𝑊 → 𝐴 ∈ V) | |
| 2 | fvssunirng 5654 | . . 3 ⊢ (𝐴 ∈ V → (𝐹‘𝐴) ⊆ ∪ ran 𝐹) | |
| 3 | 1, 2 | syl 14 | . 2 ⊢ (𝐴 ∈ 𝑊 → (𝐹‘𝐴) ⊆ ∪ ran 𝐹) |
| 4 | rnexg 4997 | . . 3 ⊢ (𝐹 ∈ 𝑉 → ran 𝐹 ∈ V) | |
| 5 | uniexg 4536 | . . 3 ⊢ (ran 𝐹 ∈ V → ∪ ran 𝐹 ∈ V) | |
| 6 | 4, 5 | syl 14 | . 2 ⊢ (𝐹 ∈ 𝑉 → ∪ ran 𝐹 ∈ V) |
| 7 | ssexg 4228 | . 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 2202 Vcvv 2802 ⊆ wss 3200 ∪ cuni 3893 ran crn 4726 ‘cfv 5326 |
| 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 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-cnv 4733 df-dm 4735 df-rn 4736 df-iota 5286 df-fv 5334 |
| This theorem is referenced by: fvex 5659 ovexg 6052 rdgivallem 6547 frecabex 6564 mapsnconst 6863 cc2lem 7485 addvalex 8064 uzennn 10699 seq1g 10726 seqp1g 10729 seqclg 10735 seqm1g 10737 seqfeq4g 10794 lswwrd 11161 ccatlen 11173 ccatval2 11176 ccatvalfn 11179 ccatalpha 11191 eqs1 11206 swrdlen 11234 swrdfv 11235 swrdwrdsymbg 11246 swrdswrd 11287 absval 11563 climmpt 11862 strnfvnd 13104 prdsex 13354 prdsval 13358 prdsbaslemss 13359 prdsbas 13361 prdsplusgfval 13369 prdsmulrfval 13371 pwsplusgval 13380 pwsmulrval 13381 imasex 13390 imasival 13391 imasbas 13392 imasplusg 13393 imasmulr 13394 imasaddfnlemg 13399 imasaddvallemg 13400 gsumfzval 13476 gsumval2 13482 gsumsplit1r 13483 gsumprval 13484 gsumfzz 13580 gsumwsubmcl 13581 gsumfzcl 13584 grpsubval 13631 mulgval 13711 mulgfng 13713 mulgnngsum 13716 znval 14653 znle 14654 znbaslemnn 14656 znbas 14661 znzrhval 14664 znzrhfo 14665 znleval 14670 iscnp4 14945 cnpnei 14946 uhgrspansubgrlem 16130 wlkvtxiedg 16199 wlkvtxiedgg 16200 wlk1walkdom 16213 wlklenvclwlk 16227 trlsegvdeglem3 16316 trlsegvdeglem5 16318 eupth2lem3fi 16330 depindlem1 16346 |
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