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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 4294 | . 2 ⊢ (𝐴 ∈ (𝐵 ↑m 𝐶) → ¬ (𝐵 ↑m 𝐶) = ∅) | |
| 2 | fnmap 8782 | . . . 4 ⊢ ↑m Fn (V × V) | |
| 3 | 2 | fndmi 6604 | . . 3 ⊢ dom ↑m = (V × V) |
| 4 | 3 | ndmov 7552 | . 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 3442 ∅c0 4287 × cxp 5630 (class class class)co 7368 ↑m cmap 8775 |
| 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-nul 5253 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-csb 3852 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-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 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-1st 7943 df-2nd 7944 df-map 8777 |
| This theorem is referenced by: elmapi 8798 elmapssres 8816 mapsspm 8826 elmapresaun 8830 mapss 8839 ralxpmap 8846 mapdom1 9082 wemapwe 9618 isf34lem6 10302 mndvcl 18734 mndvass 18735 mndvlid 18736 mndvrid 18737 mhmvlin 18738 grpvlinv 22354 grpvrinv 22355 tposmap 22413 satfv1lem 35575 mapcod 42602 mapfzcons 43062 ovnhoilem2 46949 |
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