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| Mirrors > Home > MPE Home > Th. List > elpm2 | Structured version Visualization version GIF version | ||
| Description: The predicate "is a partial function". (Contributed by NM, 15-Nov-2007.) (Revised by Mario Carneiro, 31-Dec-2013.) |
| Ref | Expression |
|---|---|
| elmap.1 | ⊢ 𝐴 ∈ V |
| elmap.2 | ⊢ 𝐵 ∈ V |
| Ref | Expression |
|---|---|
| elpm2 | ⊢ (𝐹 ∈ (𝐴 ↑pm 𝐵) ↔ (𝐹:dom 𝐹⟶𝐴 ∧ dom 𝐹 ⊆ 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elmap.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | elmap.2 | . 2 ⊢ 𝐵 ∈ V | |
| 3 | elpm2g 8871 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐹 ∈ (𝐴 ↑pm 𝐵) ↔ (𝐹:dom 𝐹⟶𝐴 ∧ dom 𝐹 ⊆ 𝐵))) | |
| 4 | 1, 2, 3 | mp2an 705 | 1 ⊢ (𝐹 ∈ (𝐴 ↑pm 𝐵) ↔ (𝐹:dom 𝐹⟶𝐴 ∧ dom 𝐹 ⊆ 𝐵)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∧ wa 401 ∈ wcel 2144 Vcvv 3450 ⊆ wss 3896 dom cdm 5651 ⟶wf 6539 (class class class)co 7424 ↑pm cpm 8855 |
| 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-pow 5327 ax-pr 5391 ax-un 7755 |
| 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-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-fv 6551 df-ov 7427 df-oprab 7428 df-mpo 7429 df-pm 8857 |
| This theorem is used by: rlimf 15677 rlimss 15678 lo1f 15694 lo1dm 15695 o1f 15705 o1dm 15706 coapm 18255 pmltpclem2 25779 mbff 25955 limcrcl 26203 dvnres 26260 c1liplem1 26325 c1lip2 26327 ulmf2 26720 elbigof 49774 elbigodm 49775 elbigoimp 49776 |
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