| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 4275 | . 2 ⊢ (𝐴 ∈ (𝐵 ↑m 𝐶) → ¬ (𝐵 ↑m 𝐶) = ∅) | |
| 2 | fnmap 8777 | . . . 4 ⊢ ↑m Fn (V × V) | |
| 3 | 2 | fndmi 6596 | . . 3 ⊢ dom ↑m = (V × V) |
| 4 | 3 | ndmov 7547 | . 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 396 = wceq 1547 ∈ wcel 2119 Vcvv 3432 ∅c0 4268 × cxp 5623 (class class class)co 7363 ↑m cmap 8770 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2712 ax-sep 5225 ax-nul 5235 ax-pow 5301 ax-pr 5369 ax-un 7685 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2719 df-cleq 2732 df-clel 2815 df-nfc 2889 df-ne 2936 df-ral 3055 df-rex 3065 df-rab 3393 df-v 3434 df-sbc 3731 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4846 df-iun 4930 df-br 5080 df-opab 5142 df-mpt 5161 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-fv 6500 df-ov 7366 df-oprab 7367 df-mpo 7368 df-1st 7938 df-2nd 7939 df-map 8772 |
| This theorem is referenced by: elmapi 8793 elmapssres 8811 mapsspm 8821 elmapresaun 8825 mapss 8834 ralxpmap 8841 mapdom1 9077 wemapwe 9616 isf34lem6 10300 mndvcl 18763 mndvass 18764 mndvlid 18765 mndvrid 18766 mhmvlin 18767 grpvlinv 22388 grpvrinv 22389 tposmap 22447 satfv1lem 35591 mapcod 42728 mapfzcons 43166 ovnhoilem2 47046 |
| Copyright terms: Public domain | W3C validator |