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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 6061 | . 2 ⊢ (𝐴𝐹𝐵) = (𝐹‘〈𝐴, 𝐵〉) | |
| 2 | opelxp 4784 | . . . 4 ⊢ (〈𝐴, 𝐵〉 ∈ (𝐶 × 𝐷) ↔ (𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷)) | |
| 3 | funfvex 5692 | . . . . 5 ⊢ ((Fun 𝐹 ∧ 〈𝐴, 𝐵〉 ∈ dom 𝐹) → (𝐹‘〈𝐴, 𝐵〉) ∈ V) | |
| 4 | 3 | funfni 5463 | . . . 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 2321 | 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 2205 Vcvv 2815 〈cop 3697 × cxp 4752 Fn wfn 5352 ‘cfv 5357 (class class class)co 6058 |
| 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 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-sbc 3046 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-opab 4177 df-id 4419 df-xp 4760 df-cnv 4762 df-co 4763 df-dm 4764 df-iota 5317 df-fun 5359 df-fn 5360 df-fv 5365 df-ov 6061 |
| This theorem is referenced by: ovelrn 6211 mapsnend 7065 mapsnen 7066 map1 7067 mapen 7112 mapdom1g 7113 mapxpen 7114 xpmapenlem 7115 mapunen 7117 2omapen 7283 fzen 10397 hashfacen 11233 wrdexg 11260 omctfn 13278 topnfn 13541 topnvalg 13548 prdsvallem 13564 ismhm 13716 mhmex 13717 gfsumval 14102 prdsval 14115 rhmex 14402 fnpsr 14941 psrelbas 14956 psrplusgg 14959 psraddcl 14961 psr0cl 14962 psr0lid 14963 psrnegcl 14964 psrlinv 14965 psrgrp 14966 psr1clfi 14969 mplvalcoe 14971 mplbascoe 14972 fnmpl 14974 mplsubgfilemcl 14980 mplplusgg 14984 restbasg 15159 tgrest 15160 restco 15165 lmfval 15184 cnfval 15185 cnpfval 15186 cnpval 15189 txrest 15267 ismet 15335 isxmet 15336 xmetunirn 15349 plyval 15723 pw1mapen 16896 |
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