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| Mirrors > Home > ILE Home > Th. List > fnovex | GIF version | ||
| Description: The result of an operation is a set. (Contributed by Jim Kingdon, 15-Jan-2019.) |
| Ref | Expression |
|---|---|
| fnovex | ⊢ ((𝐹 Fn (𝐶 × 𝐷) ∧ 𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) → (𝐴𝐹𝐵) ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ov 6052 | . 2 ⊢ (𝐴𝐹𝐵) = (𝐹‘〈𝐴, 𝐵〉) | |
| 2 | opelxp 4778 | . . . 4 ⊢ (〈𝐴, 𝐵〉 ∈ (𝐶 × 𝐷) ↔ (𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷)) | |
| 3 | funfvex 5686 | . . . . 5 ⊢ ((Fun 𝐹 ∧ 〈𝐴, 𝐵〉 ∈ dom 𝐹) → (𝐹‘〈𝐴, 𝐵〉) ∈ V) | |
| 4 | 3 | funfni 5457 | . . . 4 ⊢ ((𝐹 Fn (𝐶 × 𝐷) ∧ 〈𝐴, 𝐵〉 ∈ (𝐶 × 𝐷)) → (𝐹‘〈𝐴, 𝐵〉) ∈ V) |
| 5 | 2, 4 | sylan2br 288 | . . 3 ⊢ ((𝐹 Fn (𝐶 × 𝐷) ∧ (𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷)) → (𝐹‘〈𝐴, 𝐵〉) ∈ V) |
| 6 | 5 | 3impb 1226 | . 2 ⊢ ((𝐹 Fn (𝐶 × 𝐷) ∧ 𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) → (𝐹‘〈𝐴, 𝐵〉) ∈ V) |
| 7 | 1, 6 | eqeltrid 2319 | 1 ⊢ ((𝐹 Fn (𝐶 × 𝐷) ∧ 𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) → (𝐴𝐹𝐵) ∈ V) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∧ w3a 1005 ∈ wcel 2203 Vcvv 2812 〈cop 3691 × cxp 4746 Fn wfn 5346 ‘cfv 5351 (class class class)co 6049 |
| 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-14 2206 ax-ext 2214 ax-sep 4227 ax-pow 4286 ax-pr 4321 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-v 2814 df-sbc 3042 df-un 3214 df-in 3216 df-ss 3223 df-pw 3670 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-br 4109 df-opab 4171 df-id 4413 df-xp 4754 df-cnv 4756 df-co 4757 df-dm 4758 df-iota 5311 df-fun 5353 df-fn 5354 df-fv 5359 df-ov 6052 |
| This theorem is referenced by: ovelrn 6202 mapsnend 7051 mapsnen 7052 map1 7053 mapen 7098 mapdom1g 7099 mapxpen 7100 xpmapenlem 7101 mapunen 7103 2omapen 7269 fzen 10376 hashfacen 11204 wrdexg 11231 omctfn 13186 topnfn 13449 topnvalg 13456 prdsvallem 13477 prdsval 13478 ismhm 13666 mhmex 13667 rhmex 14294 fnpsr 14807 psrelbas 14822 psrplusgg 14825 psraddcl 14827 psr0cl 14828 psr0lid 14829 psrnegcl 14830 psrlinv 14831 psrgrp 14832 psr1clfi 14835 mplvalcoe 14837 mplbascoe 14838 fnmpl 14840 mplsubgfilemcl 14846 mplplusgg 14850 restbasg 15025 tgrest 15026 restco 15031 lmfval 15050 cnfval 15051 cnpfval 15052 cnpval 15055 txrest 15133 ismet 15201 isxmet 15202 xmetunirn 15215 plyval 15589 pw1mapen 16762 gfsumval 16853 |
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