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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 2547 | . 2 ⊢ ∀𝑥 ∈ 𝐴 𝐶 ∈ 𝐵 |
3 | fmpt.1 | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐶) | |
4 | 3 | fmpt 5708 | . 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 1364 ∈ wcel 2164 ∀wral 2472 ↦ cmpt 4090 ⟶wf 5250 |
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 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-14 2167 ax-ext 2175 ax-sep 4147 ax-pow 4203 ax-pr 4238 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-rab 2481 df-v 2762 df-sbc 2986 df-un 3157 df-in 3159 df-ss 3166 df-pw 3603 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-br 4030 df-opab 4091 df-mpt 4092 df-id 4324 df-xp 4665 df-rel 4666 df-cnv 4667 df-co 4668 df-dm 4669 df-rn 4670 df-res 4671 df-ima 4672 df-iota 5215 df-fun 5256 df-fn 5257 df-f 5258 df-fv 5262 |
This theorem is referenced by: omp1eomlem 7153 fnn0nninf 10509 cjf 10991 ref 10999 imf 11000 absf 11254 eff 11806 sinf 11847 cosf 11848 fnum 12328 fden 12329 divcnap 14723 dveflem 14872 nnsf 15495 nninfself 15503 |
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