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| Mirrors > Home > ILE Home > Th. List > simp2l | GIF version | ||
| Description: Simplification of triple conjunction. (Contributed by NM, 9-Nov-2011.) |
| Ref | Expression |
|---|---|
| simp2l | ⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒) ∧ 𝜃) → 𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl 109 | . 2 ⊢ ((𝜓 ∧ 𝜒) → 𝜓) | |
| 2 | 1 | 3ad2ant2 1050 | 1 ⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒) ∧ 𝜃) → 𝜓) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ∧ w3a 1009 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
| This proof depends on definitions: df-bi 117 df-3an 1011 |
| This theorem is used by: simpl2l 1081 simpr2l 1087 simp12l 1141 simp22l 1147 simp32l 1153 issod 4466 funprg 5434 fsnunf 5918 f1oiso2 6036 ecopovtrn 6910 ecopovtrng 6913 dftap2 7624 addassnqg 7756 ltsonq 7772 ltanqg 7774 ltmnqg 7775 addassnq0 7836 recexprlem1ssu 8008 mulasssrg 8132 distrsrg 8133 lttrsr 8136 ltsosr 8138 ltasrg 8144 mulextsr1lem 8154 mulextsr1 8155 axmulass 8247 axdistr 8248 dmdcanap 9061 ltdiv2 9226 lediv2 9230 ltdiv23 9231 lediv23 9232 xaddass 10289 xaddass2 10290 xlt2add 10300 expaddzaplem 11041 expaddzap 11042 expmulzap 11044 expdivap 11049 leisorel 11312 swrdspsleq 11462 pfxeq 11491 ccatopth2 11512 bdtrilem 12031 bdtri 12032 xrbdtri 12068 fsumsplitsnun 12212 prmexpb 12956 pcpremul 13102 pcdiv 13111 pcqmul 13112 pcqdiv 13116 4sqlem12 13211 f1ocpbllem 13691 ercpbl 13712 erlecpbl 13713 cmn4 14199 ablsub4 14208 abladdsub4 14209 rng1zrlem 14366 cnptoprest 15477 ssblps 15663 ssbl 15664 tgqioo 15793 plyadd 15989 plymul 15990 rplogbchbase 16198 dichmul0or 16977 |
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