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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 2583 | . 2 ⊢ ∀𝑥 ∈ 𝐴 𝐶 ∈ 𝐵 |
| 3 | fmpt.1 | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐶) | |
| 4 | 3 | fmpt 5791 | . 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 1395 ∈ wcel 2200 ∀wral 2508 ↦ cmpt 4146 ⟶wf 5318 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-sep 4203 ax-pow 4260 ax-pr 4295 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2802 df-sbc 3030 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3890 df-br 4085 df-opab 4147 df-mpt 4148 df-id 4386 df-xp 4727 df-rel 4728 df-cnv 4729 df-co 4730 df-dm 4731 df-rn 4732 df-res 4733 df-ima 4734 df-iota 5282 df-fun 5324 df-fn 5325 df-f 5326 df-fv 5330 |
| This theorem is referenced by: omp1eomlem 7282 fnn0nninf 10688 cjf 11395 ref 11403 imf 11404 absf 11658 eff 12211 sinf 12252 cosf 12253 bitsf 12494 fnum 12749 fden 12750 divcnap 15276 dveflem 15437 2lgslem1b 15805 nnsf 16517 nninfself 16525 |
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