Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > mptelpm | Structured version Visualization version GIF version |
Description: A function in maps-to notation is a partial map . (Contributed by Glauco Siliprandi, 5-Apr-2020.) |
Ref | Expression |
---|---|
mptelpm.b | ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ∈ 𝐶) |
mptelpm.a | ⊢ (𝜑 → 𝐴 ⊆ 𝐷) |
mptelpm.c | ⊢ (𝜑 → 𝐶 ∈ 𝑉) |
mptelpm.d | ⊢ (𝜑 → 𝐷 ∈ 𝑊) |
Ref | Expression |
---|---|
mptelpm | ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ (𝐶 ↑pm 𝐷)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mptelpm.b | . . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ∈ 𝐶) | |
2 | 1 | fmpttd 6971 | . . . 4 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵):𝐴⟶𝐶) |
3 | eqid 2738 | . . . . . . 7 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐵) | |
4 | 3, 1 | dmmptd 6562 | . . . . . 6 ⊢ (𝜑 → dom (𝑥 ∈ 𝐴 ↦ 𝐵) = 𝐴) |
5 | 4 | eqcomd 2744 | . . . . 5 ⊢ (𝜑 → 𝐴 = dom (𝑥 ∈ 𝐴 ↦ 𝐵)) |
6 | 5 | feq2d 6570 | . . . 4 ⊢ (𝜑 → ((𝑥 ∈ 𝐴 ↦ 𝐵):𝐴⟶𝐶 ↔ (𝑥 ∈ 𝐴 ↦ 𝐵):dom (𝑥 ∈ 𝐴 ↦ 𝐵)⟶𝐶)) |
7 | 2, 6 | mpbid 231 | . . 3 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵):dom (𝑥 ∈ 𝐴 ↦ 𝐵)⟶𝐶) |
8 | mptelpm.a | . . . 4 ⊢ (𝜑 → 𝐴 ⊆ 𝐷) | |
9 | 4, 8 | eqsstrd 3955 | . . 3 ⊢ (𝜑 → dom (𝑥 ∈ 𝐴 ↦ 𝐵) ⊆ 𝐷) |
10 | 7, 9 | jca 511 | . 2 ⊢ (𝜑 → ((𝑥 ∈ 𝐴 ↦ 𝐵):dom (𝑥 ∈ 𝐴 ↦ 𝐵)⟶𝐶 ∧ dom (𝑥 ∈ 𝐴 ↦ 𝐵) ⊆ 𝐷)) |
11 | mptelpm.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ 𝑉) | |
12 | mptelpm.d | . . 3 ⊢ (𝜑 → 𝐷 ∈ 𝑊) | |
13 | elpm2g 8590 | . . 3 ⊢ ((𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑊) → ((𝑥 ∈ 𝐴 ↦ 𝐵) ∈ (𝐶 ↑pm 𝐷) ↔ ((𝑥 ∈ 𝐴 ↦ 𝐵):dom (𝑥 ∈ 𝐴 ↦ 𝐵)⟶𝐶 ∧ dom (𝑥 ∈ 𝐴 ↦ 𝐵) ⊆ 𝐷))) | |
14 | 11, 12, 13 | syl2anc 583 | . 2 ⊢ (𝜑 → ((𝑥 ∈ 𝐴 ↦ 𝐵) ∈ (𝐶 ↑pm 𝐷) ↔ ((𝑥 ∈ 𝐴 ↦ 𝐵):dom (𝑥 ∈ 𝐴 ↦ 𝐵)⟶𝐶 ∧ dom (𝑥 ∈ 𝐴 ↦ 𝐵) ⊆ 𝐷))) |
15 | 10, 14 | mpbird 256 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ (𝐶 ↑pm 𝐷)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 ∈ wcel 2108 ⊆ wss 3883 ↦ cmpt 5153 dom cdm 5580 ⟶wf 6414 (class class class)co 7255 ↑pm cpm 8574 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-rab 3072 df-v 3424 df-sbc 3712 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-fv 6426 df-ov 7258 df-oprab 7259 df-mpo 7260 df-pm 8576 |
This theorem is referenced by: dvnmptconst 43372 dvnmul 43374 |
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