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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 7105 mapsnen 7106 map1 7107 mapen 7152 mapdom1g 7153 mapxpen 7154 xpmapenlem 7155 mapunen 7157 2omapen 7325 fzen 10463 hashfacen 11305 wrdexg 11336 omctfn 13391 topnfn 13656 topnvalg 13663 prdsvallem 13679 ismhm 13826 mhmex 13827 gsumvalfi 14241 prdsval 14279 rhmex 14572 fnpsr 15161 psrelbas 15188 psrplusgg 15191 psraddcl 15193 psrmulrg 15195 psrmulfval 15196 psrmulclfilem 15198 psr0cl 15200 psr0lid 15201 psrnegcl 15202 psrlinv 15203 psrgrp 15204 psr1clfi 15207 psrdifi 15211 psrdirfi 15212 mvrval 15215 mvrffi 15218 mplvalg 15222 mplbas 15223 fnmpl 15225 mplplusgg 15236 restbasg 15411 tgrest 15412 restco 15417 lmfval 15436 cnfval 15437 cnpfval 15438 cnpval 15441 txrest 15519 ismet 15587 isxmet 15588 xmetunirn 15601 plyval 15975 pw1mapen 17248 |
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