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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 2519 | . 2 ⊢ ∀𝑥 ∈ 𝐴 𝐶 ∈ 𝐵 |
3 | fmpt.1 | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐶) | |
4 | 3 | fmpt 5635 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝐶 ∈ 𝐵 ↔ 𝐹:𝐴⟶𝐵) |
5 | 2, 4 | mpbi 144 | 1 ⊢ 𝐹:𝐴⟶𝐵 |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1343 ∈ wcel 2136 ∀wral 2444 ↦ cmpt 4043 ⟶wf 5184 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-rab 2453 df-v 2728 df-sbc 2952 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-br 3983 df-opab 4044 df-mpt 4045 df-id 4271 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-res 4616 df-ima 4617 df-iota 5153 df-fun 5190 df-fn 5191 df-f 5192 df-fv 5196 |
This theorem is referenced by: omp1eomlem 7059 fnn0nninf 10372 cjf 10789 ref 10797 imf 10798 absf 11052 eff 11604 sinf 11645 cosf 11646 fnum 12122 fden 12123 divcnap 13195 dveflem 13327 nnsf 13885 nninfself 13893 |
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