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| Mirrors > Home > MPE Home > Th. List > fnmpo | Structured version Visualization version GIF version | ||
| Description: Functionality and domain of a class given by the maps-to notation. (Contributed by FL, 17-May-2010.) |
| Ref | Expression |
|---|---|
| fmpo.1 | ⊢ 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) |
| Ref | Expression |
|---|---|
| fnmpo | ⊢ (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝐶 ∈ 𝑉 → 𝐹 Fn (𝐴 × 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elex 3471 | . . 3 ⊢ (𝐶 ∈ 𝑉 → 𝐶 ∈ V) | |
| 2 | 1 | 2ralimi 3132 | . 2 ⊢ (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝐶 ∈ 𝑉 → ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝐶 ∈ V) |
| 3 | fmpo.1 | . . . 4 ⊢ 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) | |
| 4 | 3 | fmpo 8081 | . . 3 ⊢ (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝐶 ∈ V ↔ 𝐹:(𝐴 × 𝐵)⟶V) |
| 5 | dffn2 6714 | . . 3 ⊢ (𝐹 Fn (𝐴 × 𝐵) ↔ 𝐹:(𝐴 × 𝐵)⟶V) | |
| 6 | 4, 5 | bitr4i 281 | . 2 ⊢ (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝐶 ∈ V ↔ 𝐹 Fn (𝐴 × 𝐵)) |
| 7 | 2, 6 | sylib 221 | 1 ⊢ (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝐶 ∈ 𝑉 → 𝐹 Fn (𝐴 × 𝐵)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 ∀wral 3076 Vcvv 3450 × cxp 5648 Fn wfn 6536 ⟶wf 6537 ∈ cmpo 7424 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 ax-un 7753 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-iota 6496 df-fun 6543 df-fn 6544 df-f 6545 df-fv 6549 df-oprab 7426 df-mpo 7427 df-1st 8003 df-2nd 8004 |
| This theorem is used by: fnmpoi 8083 dmmpoga 8088 fnmpoovd 8100 f1od2 8112 fsplitfpar 8133 genpdm 11092 isofn 17957 mpocti 33356 cnre2csqima 34591 aks6d1c6lem3 43329 elrnmpoid 46347 smflimlem3 47890 smflimlem6 47893 invfn 50251 iinfssclem2 50276 imasubclem2 50328 |
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