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| Mirrors > Home > ILE Home > Th. List > elpm | GIF version | ||
| Description: The predicate "is a partial function". (Contributed by NM, 15-Nov-2007.) (Revised by Mario Carneiro, 14-Nov-2013.) |
| Ref | Expression |
|---|---|
| elmap.1 | ⊢ 𝐴 ∈ V |
| elmap.2 | ⊢ 𝐵 ∈ V |
| Ref | Expression |
|---|---|
| elpm | ⊢ (𝐹 ∈ (𝐴 ↑pm 𝐵) ↔ (Fun 𝐹 ∧ 𝐹 ⊆ (𝐵 × 𝐴))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elmap.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | elmap.2 | . 2 ⊢ 𝐵 ∈ V | |
| 3 | elpmg 6781 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐹 ∈ (𝐴 ↑pm 𝐵) ↔ (Fun 𝐹 ∧ 𝐹 ⊆ (𝐵 × 𝐴)))) | |
| 4 | 1, 2, 3 | mp2an 426 | 1 ⊢ (𝐹 ∈ (𝐴 ↑pm 𝐵) ↔ (Fun 𝐹 ∧ 𝐹 ⊆ (𝐵 × 𝐴))) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 ↔ wb 105 ∈ wcel 2180 Vcvv 2779 ⊆ wss 3177 × cxp 4694 Fun wfun 5288 (class class class)co 5974 ↑pm cpm 6766 |
| 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-in1 617 ax-in2 618 ax-io 713 ax-5 1473 ax-7 1474 ax-gen 1475 ax-ie1 1519 ax-ie2 1520 ax-8 1530 ax-10 1531 ax-11 1532 ax-i12 1533 ax-bndl 1535 ax-4 1536 ax-17 1552 ax-i9 1556 ax-ial 1560 ax-i5r 1561 ax-13 2182 ax-14 2183 ax-ext 2191 ax-sep 4181 ax-pow 4237 ax-pr 4272 ax-un 4501 ax-setind 4606 |
| This theorem depends on definitions: df-bi 117 df-3an 985 df-tru 1378 df-fal 1381 df-nf 1487 df-sb 1789 df-eu 2060 df-mo 2061 df-clab 2196 df-cleq 2202 df-clel 2205 df-nfc 2341 df-ne 2381 df-ral 2493 df-rex 2494 df-rab 2497 df-v 2781 df-sbc 3009 df-dif 3179 df-un 3181 df-in 3183 df-ss 3190 df-pw 3631 df-sn 3652 df-pr 3653 df-op 3655 df-uni 3868 df-br 4063 df-opab 4125 df-id 4361 df-xp 4702 df-rel 4703 df-cnv 4704 df-co 4705 df-dm 4706 df-iota 5254 df-fun 5296 df-fv 5302 df-ov 5977 df-oprab 5978 df-mpo 5979 df-pm 6768 |
| This theorem is referenced by: (None) |
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