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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 4464 funprg 5431 fsnunf 5915 f1oiso2 6033 ecopovtrn 6906 ecopovtrng 6909 dftap2 7617 addassnqg 7749 ltsonq 7765 ltanqg 7767 ltmnqg 7768 addassnq0 7829 recexprlem1ssu 8001 mulasssrg 8125 distrsrg 8126 lttrsr 8129 ltsosr 8131 ltasrg 8137 mulextsr1lem 8147 mulextsr1 8148 axmulass 8240 axdistr 8241 dmdcanap 9053 ltdiv2 9218 lediv2 9222 ltdiv23 9223 lediv23 9224 xaddass 10273 xaddass2 10274 xlt2add 10284 expaddzaplem 11021 expaddzap 11022 expmulzap 11024 expdivap 11029 leisorel 11291 swrdspsleq 11441 pfxeq 11470 ccatopth2 11491 bdtrilem 12007 bdtri 12008 xrbdtri 12044 fsumsplitsnun 12188 prmexpb 12931 pcpremul 13074 pcdiv 13083 pcqmul 13084 pcqdiv 13088 4sqlem12 13183 f1ocpbllem 13633 ercpbl 13654 erlecpbl 13655 cmn4 14110 ablsub4 14119 abladdsub4 14120 rng1zrlem 14260 cnptoprest 15342 ssblps 15528 ssbl 15529 tgqioo 15658 plyadd 15854 plymul 15855 rplogbchbase 16058 dichmul0or 16772 |
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