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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 6091 | . 2 ⊢ (𝐴𝐹𝐵) = (𝐹‘〈𝐴, 𝐵〉) | |
| 2 | opelxp 4806 | . . . 4 ⊢ (〈𝐴, 𝐵〉 ∈ (𝐶 × 𝐷) ↔ (𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷)) | |
| 3 | funfvex 5715 | . . . . 5 ⊢ ((Fun 𝐹 ∧ 〈𝐴, 𝐵〉 ∈ dom 𝐹) → (𝐹‘〈𝐴, 𝐵〉) ∈ V) | |
| 4 | 3 | funfni 5486 | . . . 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 1230 | . 2 ⊢ ((𝐹 Fn (𝐶 × 𝐷) ∧ 𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) → (𝐹‘〈𝐴, 𝐵〉) ∈ V) |
| 7 | 1, 6 | eqeltrid 2325 | 1 ⊢ ((𝐹 Fn (𝐶 × 𝐷) ∧ 𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) → (𝐴𝐹𝐵) ∈ V) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ∧ w3a 1009 ∈ wcel 2209 Vcvv 2821 〈cop 3712 × cxp 4774 Fn wfn 5375 ‘cfv 5380 (class class class)co 6088 |
| 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 |
| 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-sbc 3052 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-id 4440 df-xp 4782 df-cnv 4784 df-co 4785 df-dm 4786 df-iota 5340 df-fun 5382 df-fn 5383 df-fv 5388 df-ov 6091 |
| This theorem is used by: ovelrn 6241 mapsnend 7103 mapsnen 7104 map1 7105 mapen 7150 mapdom1g 7151 mapxpen 7152 xpmapenlem 7153 mapunen 7155 2omapen 7325 fzen 10464 hashfacen 11306 wrdexg 11337 omctfn 13392 topnfn 13657 topnvalg 13664 prdsvallem 13680 ismhm 13827 mhmex 13828 gsumvalfi 14242 prdsval 14280 rhmex 14573 fnpsr 15160 psrelbas 15179 psrplusgg 15182 psraddcl 15184 psrmulrg 15186 psrmulfval 15187 psrmulclfilem 15189 psr0cl 15191 psr0lid 15192 psrnegcl 15193 psrlinv 15194 psrgrp 15195 psr1clfi 15198 psrdifi 15202 psrdirfi 15203 mplvalcoe 15206 mplbascoe 15207 fnmpl 15209 mplsubgfilemcl 15215 mplplusgg 15219 restbasg 15394 tgrest 15395 restco 15400 lmfval 15419 cnfval 15420 cnpfval 15421 cnpval 15424 txrest 15502 ismet 15570 isxmet 15571 xmetunirn 15584 plyval 15958 pw1mapen 17231 |
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