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| Mirrors > Home > MPE Home > Th. List > elmapex | Structured version Visualization version GIF version | ||
| Description: Eliminate antecedent for mapping theorems: domain can be taken to be a set. (Contributed by Stefan O'Rear, 8-Oct-2014.) |
| Ref | Expression |
|---|---|
| elmapex | ⊢ (𝐴 ∈ (𝐵 ↑m 𝐶) → (𝐵 ∈ V ∧ 𝐶 ∈ V)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | n0i 4280 | . 2 ⊢ (𝐴 ∈ (𝐵 ↑m 𝐶) → ¬ (𝐵 ↑m 𝐶) = ∅) | |
| 2 | fnmap 8780 | . . . 4 ⊢ ↑m Fn (V × V) | |
| 3 | 2 | fndmi 6602 | . . 3 ⊢ dom ↑m = (V × V) |
| 4 | 3 | ndmov 7551 | . 2 ⊢ (¬ (𝐵 ∈ V ∧ 𝐶 ∈ V) → (𝐵 ↑m 𝐶) = ∅) |
| 5 | 1, 4 | nsyl2 141 | 1 ⊢ (𝐴 ∈ (𝐵 ↑m 𝐶) → (𝐵 ∈ V ∧ 𝐶 ∈ V)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 Vcvv 3429 ∅c0 4273 × cxp 5629 (class class class)co 7367 ↑m cmap 8773 |
| 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-nul 5241 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-csb 3838 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-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 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-1st 7942 df-2nd 7943 df-map 8775 |
| This theorem is referenced by: elmapi 8796 elmapssres 8814 mapsspm 8824 elmapresaun 8828 mapss 8837 ralxpmap 8844 mapdom1 9080 wemapwe 9618 isf34lem6 10302 mndvcl 18765 mndvass 18766 mndvlid 18767 mndvrid 18768 mhmvlin 18769 grpvlinv 22363 grpvrinv 22364 tposmap 22422 satfv1lem 35544 mapcod 42682 mapfzcons 43148 ovnhoilem2 47030 |
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