| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 7529 | . 2 ⊢ ((dom 𝐹 = (𝑆 × 𝑆) ∧ ¬ (𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆)) → (𝐴𝐹𝐵) = ∅) | |
| 3 | 1, 2 | mpan 690 | 1 ⊢ (¬ (𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) → (𝐴𝐹𝐵) = ∅) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2111 ∅c0 4280 × cxp 5612 dom cdm 5614 (class class class)co 7346 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-ext 2703 ax-sep 5232 ax-nul 5242 ax-pr 5368 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-ne 2929 df-ral 3048 df-rex 3057 df-rab 3396 df-v 3438 df-dif 3900 df-un 3902 df-ss 3914 df-nul 4281 df-if 4473 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4857 df-br 5090 df-opab 5152 df-xp 5620 df-dm 5624 df-iota 6437 df-fv 6489 df-ov 7349 |
| This theorem is referenced by: ndmovcl 7531 ndmovrcl 7532 ndmovcom 7533 ndmovass 7534 ndmovdistr 7535 om0x 8434 oaabs2 8564 omabs 8566 eceqoveq 8746 elpmi 8770 elmapex 8772 pmresg 8794 pmsspw 8801 addnidpi 10792 adderpq 10847 mulerpq 10848 elixx3g 13258 ndmioo 13272 elfz2 13414 fz0 13439 elfzoel1 13557 elfzoel2 13558 fzoval 13560 fzofi 13881 restsspw 17335 fucbas 17870 fuchom 17871 xpcbas 18084 xpchomfval 18085 xpccofval 18088 restrcl 23072 ssrest 23091 resstopn 23101 iocpnfordt 23130 icomnfordt 23131 nghmfval 24637 isnghm 24638 topnfbey 30449 cvmtop1 35304 cvmtop2 35305 ndmico 45674 |
| Copyright terms: Public domain | W3C validator |