| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > intnanrd | Structured version Visualization version GIF version | ||
| Description: Introduction of conjunct inside of a contradiction. (Contributed by NM, 10-Jul-2005.) |
| Ref | Expression |
|---|---|
| intnand.1 | ⊢ (𝜑 → ¬ 𝜓) |
| Ref | Expression |
|---|---|
| intnanrd | ⊢ (𝜑 → ¬ (𝜓 ∧ 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | intnand.1 | . 2 ⊢ (𝜑 → ¬ 𝜓) | |
| 2 | simpl 488 | . 2 ⊢ ((𝜓 ∧ 𝜒) → 𝜓) | |
| 3 | 1, 2 | nsyl 141 | 1 ⊢ (𝜑 → ¬ (𝜓 ∧ 𝜒)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∧ 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: bianfd 544 3bior1fand 1507 pr1eqbg 4811 iresn0n0 6045 frxp2 8164 frxp3 8171 wemappo 9547 axrepnd 10683 axunnd 10685 fzpreddisj 13711 sadadd2lem2 16626 smumullem 16668 nndvdslegcd 16681 divgcdnn 16693 sqgcd 16742 coprm 16893 isnmnd 18933 nfimdetndef 22910 mdetfval1 22911 ibladdlem 26146 lgsval2lem 27640 lgsval4a 27652 lgsdilem 27657 2sqcoprm 27768 addsqn2reurex2 27778 nosepdmlem 28046 nodenselem8 28054 nosupbnd2lem1 28078 pw2cut2 28854 nbgrnself 29946 wwlks 30430 iswspthsnon 30451 clwwlknon1nloop 30696 clwwlknon1le1 30698 nfrgr2v 30879 tpssad 33183 hashxpe 33446 esplyind 34254 j0ltaleph 35948 acycgr0v 35990 prclisacycgr 35993 fmlasucdisj 36251 dfrdg4 36808 nmulprop 37032 finxpreclem3 38410 finxpreclem5 38412 ibladdnclem 38688 dihatlat 42485 xppss12 43377 jm2.23 44097 rexanuz2nf 46596 ltnelicc 46603 limciccioolb 46727 dvmptfprodlem 47048 stoweidlem26 47130 fourierdlem12 47223 fourierdlem42 47253 divgcdoddALTV 48874 parhomne2 50848 |
| Copyright terms: Public domain | W3C validator |