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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 5261 axnul 5262 cnv0 5863 cnv0OLD 5864 imadif 6617 poxp3 8148 1div0 11897 xrltnr 13170 nltmnf 13180 0nelfz1 13597 smu01 16576 3lcm2e6woprm 16705 6lcm4e12 16706 join0 18491 meet0 18492 nsmndex1 19025 smndex2dnrinv 19027 degenmgmnfn 19049 degenmgm2nfun 19052 zringndrg 21681 zclmncvs 25376 nolt02o 27931 nogt01o 27932 legso 28941 rgrx0ndm 30053 wwlksnext 30361 ntrl2v2e 30638 avril1 30943 helloworld 30945 topnfbey 30949 xrge00 33454 axnulALT2 35590 axsepg3ALT 35668 fmlaomn0 35969 gonan0 35971 goaln0 35972 prv0 36009 dfon2lem7 36366 nandsym1 37041 bj-inftyexpitaudisj 37957 padd01 40684 ifpdfan 44306 sucomisnotcard 44384 clsk1indlem4 44884 iblempty 46793 salexct2 47167 0nodd 49085 2nodd 49087 1neven 49153 ipolub00 49919 |
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