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| Mirrors > Home > MPE Home > Th. List > fmpt2d | Structured version Visualization version GIF version | ||
| Description: Domain and codomain of the mapping operation; deduction form. (Contributed by NM, 27-Dec-2014.) |
| Ref | Expression |
|---|---|
| fmpt2d.2 | ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ∈ 𝑉) |
| fmpt2d.1 | ⊢ (𝜑 → 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵)) |
| fmpt2d.3 | ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ 𝐶) |
| Ref | Expression |
|---|---|
| fmpt2d | ⊢ (𝜑 → 𝐹:𝐴⟶𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fmpt2d.2 | . . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ∈ 𝑉) | |
| 2 | 1 | ralrimiva 3153 | . . . 4 ⊢ (𝜑 → ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉) |
| 3 | eqid 2761 | . . . . 5 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐵) | |
| 4 | 3 | fnmpt 6657 | . . . 4 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → (𝑥 ∈ 𝐴 ↦ 𝐵) Fn 𝐴) |
| 5 | 2, 4 | syl 17 | . . 3 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) Fn 𝐴) |
| 6 | fmpt2d.1 | . . . 4 ⊢ (𝜑 → 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵)) | |
| 7 | 6 | fneq1d 6610 | . . 3 ⊢ (𝜑 → (𝐹 Fn 𝐴 ↔ (𝑥 ∈ 𝐴 ↦ 𝐵) Fn 𝐴)) |
| 8 | 5, 7 | mpbird 259 | . 2 ⊢ (𝜑 → 𝐹 Fn 𝐴) |
| 9 | fmpt2d.3 | . . 3 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ 𝐶) | |
| 10 | 9 | ralrimiva 3153 | . 2 ⊢ (𝜑 → ∀𝑦 ∈ 𝐴 (𝐹‘𝑦) ∈ 𝐶) |
| 11 | ffnfv 7096 | . 2 ⊢ (𝐹:𝐴⟶𝐶 ↔ (𝐹 Fn 𝐴 ∧ ∀𝑦 ∈ 𝐴 (𝐹‘𝑦) ∈ 𝐶)) | |
| 12 | 8, 10, 11 | sylanbrc 592 | 1 ⊢ (𝜑 → 𝐹:𝐴⟶𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1559 ∈ wcel 2141 ∀wral 3075 ↦ cmpt 5180 Fn wfn 6512 ⟶wf 6513 ‘cfv 6517 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-nul 5255 ax-pr 5389 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5540 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-fv 6525 |
| This theorem is referenced by: cantnff 9626 limsupgre 15491 idaf 18079 curfcl 18247 ghmqusnsg 19305 ghmquskerlem3 19309 ghmqusker 19310 mat2pmatf 22768 m2cpmf 22782 pm2mpf 22838 clsf 23088 kgenf 23581 lgamf 27083 vmaf 27160 lgsdchr 27396 mirf 28806 suppovss 32833 selvply1rhmlema 33776 extvfvcl 33794 extvfvalf 33795 omsf 34554 erdszelem6 35510 cdleme50f 41130 dochfN 41944 binomcxplemdvsum 44895 |
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