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| Mirrors > Home > MPE Home > Th. List > elpm2r | Structured version Visualization version GIF version | ||
| Description: Sufficient condition for being a partial function. (Contributed by NM, 31-Dec-2013.) |
| Ref | Expression |
|---|---|
| elpm2r | ⊢ (((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) ∧ (𝐹:𝐶⟶𝐴 ∧ 𝐶 ⊆ 𝐵)) → 𝐹 ∈ (𝐴 ↑pm 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fdm 6679 | . . . . . . 7 ⊢ (𝐹:𝐶⟶𝐴 → dom 𝐹 = 𝐶) | |
| 2 | 1 | feq2d 6654 | . . . . . 6 ⊢ (𝐹:𝐶⟶𝐴 → (𝐹:dom 𝐹⟶𝐴 ↔ 𝐹:𝐶⟶𝐴)) |
| 3 | 1 | sseq1d 3967 | . . . . . 6 ⊢ (𝐹:𝐶⟶𝐴 → (dom 𝐹 ⊆ 𝐵 ↔ 𝐶 ⊆ 𝐵)) |
| 4 | 2, 3 | anbi12d 633 | . . . . 5 ⊢ (𝐹:𝐶⟶𝐴 → ((𝐹:dom 𝐹⟶𝐴 ∧ dom 𝐹 ⊆ 𝐵) ↔ (𝐹:𝐶⟶𝐴 ∧ 𝐶 ⊆ 𝐵))) |
| 5 | 4 | adantr 480 | . . . 4 ⊢ ((𝐹:𝐶⟶𝐴 ∧ 𝐶 ⊆ 𝐵) → ((𝐹:dom 𝐹⟶𝐴 ∧ dom 𝐹 ⊆ 𝐵) ↔ (𝐹:𝐶⟶𝐴 ∧ 𝐶 ⊆ 𝐵))) |
| 6 | 5 | ibir 268 | . . 3 ⊢ ((𝐹:𝐶⟶𝐴 ∧ 𝐶 ⊆ 𝐵) → (𝐹:dom 𝐹⟶𝐴 ∧ dom 𝐹 ⊆ 𝐵)) |
| 7 | elpm2g 8793 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐹 ∈ (𝐴 ↑pm 𝐵) ↔ (𝐹:dom 𝐹⟶𝐴 ∧ dom 𝐹 ⊆ 𝐵))) | |
| 8 | 6, 7 | imbitrrid 246 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → ((𝐹:𝐶⟶𝐴 ∧ 𝐶 ⊆ 𝐵) → 𝐹 ∈ (𝐴 ↑pm 𝐵))) |
| 9 | 8 | imp 406 | 1 ⊢ (((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) ∧ (𝐹:𝐶⟶𝐴 ∧ 𝐶 ⊆ 𝐵)) → 𝐹 ∈ (𝐴 ↑pm 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∈ wcel 2114 ⊆ wss 3903 dom cdm 5632 ⟶wf 6496 (class class class)co 7368 ↑pm cpm 8776 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-pow 5312 ax-pr 5379 ax-un 7690 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-sbc 3743 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-fv 6508 df-ov 7371 df-oprab 7372 df-mpo 7373 df-pm 8778 |
| This theorem is referenced by: fpmg 8818 pmresg 8820 rlim 15430 ello12 15451 elo12 15462 sscpwex 17751 catcfuccl 18054 catcxpccl 18142 lmbrf 23216 cnextfval 24018 lmmbrf 25230 iscauf 25248 caucfil 25251 cmetcaulem 25256 lmclimf 25272 ismbf 25597 ismbfcn 25598 mbfconst 25602 cncombf 25627 cnmbf 25628 limcfval 25841 dvfval 25866 dvnff 25893 dvn2bss 25900 dvnfre 25924 taylfvallem1 26332 taylfval 26334 tayl0 26337 taylplem1 26338 taylply2 26343 taylply2OLD 26344 taylply 26345 dvtaylp 26346 dvntaylp 26347 dvntaylp0 26348 taylthlem1 26349 taylthlem2 26350 taylthlem2OLD 26351 ulmval 26357 ulmpm 26360 iscgrgd 28597 esumcvg 34264 mrsubfval 35724 elmrsubrn 35736 msubfval 35740 fwddifval 36378 fwddifnval 36379 fpmd 45621 xlimmnfvlem2 46191 xlimpnfvlem2 46195 dvnmptdivc 46296 dvnxpaek 46300 etransclem46 46638 issmflem 47085 fdivpm 48903 refdivpm 48904 elbigo2 48912 |
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