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| Mirrors > Home > MPE Home > Th. List > intnan | Structured version Visualization version GIF version | ||
| Description: Introduction of conjunct inside of a contradiction. (Contributed by NM, 16-Sep-1993.) |
| Ref | Expression |
|---|---|
| intnan.1 | ⊢ ¬ 𝜑 |
| Ref | Expression |
|---|---|
| intnan | ⊢ ¬ (𝜓 ∧ 𝜑) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | intnan.1 | . 2 ⊢ ¬ 𝜑 | |
| 2 | simpr 490 | . 2 ⊢ ((𝜓 ∧ 𝜑) → 𝜑) | |
| 3 | 1, 2 | mto 200 | 1 ⊢ ¬ (𝜓 ∧ 𝜑) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 ∧ wa 401 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
| This proof depends on definitions: df-bi 210 df-an 402 |
| This theorem is used by: bianfi 543 noel 4284 uni0 4896 axnulALT 5258 axnul 5259 cnv0 5861 cnv0OLD 5862 imadif 6622 poxp3 8160 1div0 11968 xrltnr 13241 nltmnf 13251 0nelfz1 13669 smu01 16649 3lcm2e6woprm 16783 6lcm4e12 16784 join0 18570 meet0 18571 nsmndex1 19105 smndex2dnrinv 19107 degenmgmnfn 19129 degenmgm2nfun 19132 zringndrg 21767 zclmncvs 25462 nolt02o 28045 nogt01o 28046 legso 29055 rgrx0ndm 30167 wwlksnext 30475 ntrl2v2e 30752 avril1 31057 helloworld 31059 topnfbey 31063 xrge00 33568 axnulALT2 35704 axsepg3ALT 35793 fmlaomn0 36134 gonan0 36136 goaln0 36137 prv0 36174 dfon2lem7 36531 nandsym1 37190 bj-inftyexpitaudisj 38106 padd01 40848 ifpdfan 44451 sucomisnotcard 44529 clsk1indlem4 45029 iblempty 46944 salexct2 47318 0nodd 49236 2nodd 49238 1neven 49304 ipolub00 50070 |
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