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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 6677 | . . . . . . 7 ⊢ (𝐹:𝐶⟶𝐴 → dom 𝐹 = 𝐶) | |
| 2 | 1 | feq2d 6652 | . . . . . 6 ⊢ (𝐹:𝐶⟶𝐴 → (𝐹:dom 𝐹⟶𝐴 ↔ 𝐹:𝐶⟶𝐴)) |
| 3 | 1 | sseq1d 3953 | . . . . . 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 8791 | . . 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 3889 dom cdm 5631 ⟶wf 6494 (class class class)co 7367 ↑pm cpm 8774 |
| 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 2708 ax-sep 5231 ax-pow 5307 ax-pr 5375 ax-un 7689 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-sbc 3729 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-fv 6506 df-ov 7370 df-oprab 7371 df-mpo 7372 df-pm 8776 |
| This theorem is referenced by: fpmg 8816 pmresg 8818 rlim 15457 ello12 15478 elo12 15489 sscpwex 17782 catcfuccl 18085 catcxpccl 18173 lmbrf 23225 cnextfval 24027 lmmbrf 25229 iscauf 25247 caucfil 25250 cmetcaulem 25255 lmclimf 25271 ismbf 25595 ismbfcn 25596 mbfconst 25600 cncombf 25625 cnmbf 25626 limcfval 25839 dvfval 25864 dvnff 25890 dvn2bss 25897 dvnfre 25919 taylfvallem1 26322 taylfval 26324 tayl0 26327 taylplem1 26328 taylply2 26333 taylply 26334 dvtaylp 26335 dvntaylp 26336 dvntaylp0 26337 taylthlem1 26338 taylthlem2 26339 ulmval 26345 ulmpm 26348 iscgrgd 28581 esumcvg 34230 mrsubfval 35690 elmrsubrn 35702 msubfval 35706 fwddifval 36344 fwddifnval 36345 fpmd 45692 xlimmnfvlem2 46261 xlimpnfvlem2 46265 dvnmptdivc 46366 dvnxpaek 46370 etransclem46 46708 issmflem 47155 fdivpm 49019 refdivpm 49020 elbigo2 49028 |
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