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| Mirrors > Home > MPE Home > Th. List > ndmov | Structured version Visualization version GIF version | ||
| Description: The value of an operation outside its domain. (Contributed by NM, 24-Aug-1995.) |
| Ref | Expression |
|---|---|
| ndmov.1 | ⊢ dom 𝐹 = (𝑆 × 𝑆) |
| Ref | Expression |
|---|---|
| ndmov | ⊢ (¬ (𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) → (𝐴𝐹𝐵) = ∅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ndmov.1 | . 2 ⊢ dom 𝐹 = (𝑆 × 𝑆) | |
| 2 | ndmovg 7579 | . 2 ⊢ ((dom 𝐹 = (𝑆 × 𝑆) ∧ ¬ (𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆)) → (𝐴𝐹𝐵) = ∅) | |
| 3 | 1, 2 | mpan 700 | 1 ⊢ (¬ (𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) → (𝐴𝐹𝐵) = ∅) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 399 = wceq 1560 ∈ wcel 2142 ∅c0 4285 × cxp 5645 dom cdm 5647 (class class class)co 7396 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-ext 2734 ax-sep 5246 ax-nul 5256 ax-pr 5390 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-ne 2958 df-ral 3077 df-rex 3087 df-rab 3415 df-v 3456 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4481 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-xp 5653 df-dm 5657 df-iota 6477 df-fv 6529 df-ov 7399 |
| This theorem is referenced by: ndmovcl 7581 ndmovrcl 7582 ndmovcom 7583 ndmovass 7584 ndmovdistr 7585 om0x 8488 oaabs2 8619 omabs 8621 eceqoveq 8804 elpmi 8827 elmapex 8829 pmresg 8852 pmsspw 8859 addnidpi 10859 adderpq 10914 mulerpq 10915 elixx3g 13362 ndmioo 13376 elfz2 13519 fz0 13544 elfzoel1 13662 elfzoel2 13663 fzoval 13665 fzofi 13987 restsspw 17460 fucbas 17996 fuchom 17997 xpcbas 18210 xpchomfval 18211 xpccofval 18214 restrcl 23217 ssrest 23236 resstopn 23246 iocpnfordt 23275 icomnfordt 23276 nghmfval 24782 isnghm 24783 topnfbey 30671 cvmtop1 35610 cvmtop2 35611 ndmico 46140 |
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