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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 7539 | . 2 ⊢ ((dom 𝐹 = (𝑆 × 𝑆) ∧ ¬ (𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆)) → (𝐴𝐹𝐵) = ∅) | |
| 3 | 1, 2 | mpan 696 | 1 ⊢ (¬ (𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) → (𝐴𝐹𝐵) = ∅) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 396 = wceq 1547 ∈ wcel 2119 ∅c0 4261 × cxp 5616 dom cdm 5618 (class class class)co 7356 |
| 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-ext 2711 ax-sep 5218 ax-nul 5228 ax-pr 5362 |
| 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-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-ne 2935 df-ral 3054 df-rex 3064 df-rab 3392 df-v 3433 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4262 df-if 4455 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-br 5073 df-opab 5135 df-xp 5624 df-dm 5628 df-iota 6441 df-fv 6493 df-ov 7359 |
| This theorem is referenced by: ndmovcl 7541 ndmovrcl 7542 ndmovcom 7543 ndmovass 7544 ndmovdistr 7545 om0x 8444 oaabs2 8575 omabs 8577 eceqoveq 8759 elpmi 8783 elmapex 8785 pmresg 8808 pmsspw 8815 addnidpi 10815 adderpq 10870 mulerpq 10871 elixx3g 13302 ndmioo 13316 elfz2 13459 fz0 13484 elfzoel1 13602 elfzoel2 13603 fzoval 13605 fzofi 13927 restsspw 17385 fucbas 17921 fuchom 17922 xpcbas 18135 xpchomfval 18136 xpccofval 18139 restrcl 23140 ssrest 23159 resstopn 23169 iocpnfordt 23198 icomnfordt 23199 nghmfval 24705 isnghm 24706 topnfbey 30557 cvmtop1 35488 cvmtop2 35489 ndmico 46009 |
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