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| Mirrors > Home > ILE Home > Th. List > simp1l | GIF version | ||
| Description: Simplification of triple conjunction. (Contributed by NM, 9-Nov-2011.) |
| Ref | Expression |
|---|---|
| simp1l | ⊢ (((𝜑 ∧ 𝜓) ∧ 𝜒 ∧ 𝜃) → 𝜑) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl 109 | . 2 ⊢ ((𝜑 ∧ 𝜓) → 𝜑) | |
| 2 | 1 | 3ad2ant1 1049 | 1 ⊢ (((𝜑 ∧ 𝜓) ∧ 𝜒 ∧ 𝜃) → 𝜑) |
| 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: simpl1l 1079 simpr1l 1085 simp11l 1139 simp21l 1145 simp31l 1151 en2lp 4703 tfisi 4736 funprg 5434 nnsucsssuc 6769 ecopovtrn 6910 ecopovtrng 6913 addassnqg 7756 distrnqg 7761 ltsonq 7772 ltanqg 7774 ltmnqg 7775 distrnq0 7833 addassnq0 7836 mulasssrg 8132 distrsrg 8133 lttrsr 8136 ltsosr 8138 ltasrg 8144 mulextsr1lem 8154 mulextsr1 8155 axmulass 8247 axdistr 8248 dmdcanap 9061 lt2msq1 9224 ltdiv2 9226 lediv2 9230 xaddass 10289 xaddass2 10290 xlt2add 10300 modqdi 10851 expaddzaplem 11041 expaddzap 11042 expmulzap 11044 swrdspsleq 11462 pfxeq 11491 ccatopth2 11512 pfxccat3 11529 resqrtcl 11818 bdtrilem 12031 bdtri 12032 xrbdtri 12068 bitsfzo 12748 prmexpb 12956 4sqlem18 13217 subgabl 14227 rng1zrlem 14366 opprringbg 14495 cnptoprest 15477 ssblps 15663 ssbl 15664 plyadd 15989 plymul 15990 rplogbchbase 16198 rplogbreexp 16201 relogbcxpbap 16213 lgssq 16376 uhgr2edg 16664 clwwlkccat 16859 |
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