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| Mirrors > Home > ILE Home > Th. List > fmpti | GIF version | ||
| Description: Functionality of the mapping operation. (Contributed by NM, 19-Mar-2005.) (Revised by Mario Carneiro, 1-Sep-2015.) |
| Ref | Expression |
|---|---|
| fmpt.1 | ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐶) |
| fmpti.2 | ⊢ (𝑥 ∈ 𝐴 → 𝐶 ∈ 𝐵) |
| Ref | Expression |
|---|---|
| fmpti | ⊢ 𝐹:𝐴⟶𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fmpti.2 | . . 3 ⊢ (𝑥 ∈ 𝐴 → 𝐶 ∈ 𝐵) | |
| 2 | 1 | rgen 2558 | . 2 ⊢ ∀𝑥 ∈ 𝐴 𝐶 ∈ 𝐵 |
| 3 | fmpt.1 | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐶) | |
| 4 | 3 | fmpt 5729 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝐶 ∈ 𝐵 ↔ 𝐹:𝐴⟶𝐵) |
| 5 | 2, 4 | mpbi 145 | 1 ⊢ 𝐹:𝐴⟶𝐵 |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1372 ∈ wcel 2175 ∀wral 2483 ↦ cmpt 4104 ⟶wf 5266 |
| 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 710 ax-5 1469 ax-7 1470 ax-gen 1471 ax-ie1 1515 ax-ie2 1516 ax-8 1526 ax-10 1527 ax-11 1528 ax-i12 1529 ax-bndl 1531 ax-4 1532 ax-17 1548 ax-i9 1552 ax-ial 1556 ax-i5r 1557 ax-14 2178 ax-ext 2186 ax-sep 4161 ax-pow 4217 ax-pr 4252 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1375 df-nf 1483 df-sb 1785 df-eu 2056 df-mo 2057 df-clab 2191 df-cleq 2197 df-clel 2200 df-nfc 2336 df-ral 2488 df-rex 2489 df-rab 2492 df-v 2773 df-sbc 2998 df-un 3169 df-in 3171 df-ss 3178 df-pw 3617 df-sn 3638 df-pr 3639 df-op 3641 df-uni 3850 df-br 4044 df-opab 4105 df-mpt 4106 df-id 4339 df-xp 4680 df-rel 4681 df-cnv 4682 df-co 4683 df-dm 4684 df-rn 4685 df-res 4686 df-ima 4687 df-iota 5231 df-fun 5272 df-fn 5273 df-f 5274 df-fv 5278 |
| This theorem is referenced by: omp1eomlem 7195 fnn0nninf 10581 cjf 11100 ref 11108 imf 11109 absf 11363 eff 11916 sinf 11957 cosf 11958 bitsf 12199 fnum 12454 fden 12455 divcnap 14979 dveflem 15140 2lgslem1b 15508 nnsf 15875 nninfself 15883 |
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