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| Mirrors > Home > ILE Home > Th. List > mpoex | GIF version | ||
| Description: If the domain of an operation given by maps-to notation is a set, the operation is a set. (Contributed by Mario Carneiro, 20-Dec-2013.) |
| Ref | Expression |
|---|---|
| mpoex.1 | ⊢ 𝐴 ∈ V |
| mpoex.2 | ⊢ 𝐵 ∈ V |
| Ref | Expression |
|---|---|
| mpoex | ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpoex.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | mpoex.2 | . . 3 ⊢ 𝐵 ∈ V | |
| 3 | 2 | rgenw 2587 | . 2 ⊢ ∀𝑥 ∈ 𝐴 𝐵 ∈ V |
| 4 | eqid 2231 | . . 3 ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) | |
| 5 | 4 | mpoexxg 6374 | . 2 ⊢ ((𝐴 ∈ V ∧ ∀𝑥 ∈ 𝐴 𝐵 ∈ V) → (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) ∈ V) |
| 6 | 1, 3, 5 | mp2an 426 | 1 ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) ∈ V |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2202 ∀wral 2510 Vcvv 2802 ∈ cmpo 6019 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-coll 4204 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-iun 3972 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-f1 5331 df-fo 5332 df-f1o 5333 df-fv 5334 df-oprab 6021 df-mpo 6022 df-1st 6302 df-2nd 6303 |
| This theorem is referenced by: prdsex 13351 blfn 14564 cndsex 14566 cnfldstr 14571 mpocnfldadd 14574 mpocnfldmul 14576 fnpsr 14680 |
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