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| Mirrors > Home > ILE Home > Th. List > simp3l | GIF version | ||
| Description: Simplification of triple conjunction. (Contributed by NM, 9-Nov-2011.) |
| Ref | Expression |
|---|---|
| simp3l | ⊢ ((𝜑 ∧ 𝜓 ∧ (𝜒 ∧ 𝜃)) → 𝜒) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl 109 | . 2 ⊢ ((𝜒 ∧ 𝜃) → 𝜒) | |
| 2 | 1 | 3ad2ant3 1051 | 1 ⊢ ((𝜑 ∧ 𝜓 ∧ (𝜒 ∧ 𝜃)) → 𝜒) |
| 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: simpl3l 1083 simpr3l 1089 simp13l 1143 simp23l 1149 simp33l 1155 issod 4466 tfisi 4736 tfrlem5 6589 tfrlemibxssdm 6602 tfr1onlembxssdm 6618 tfrcllembxssdm 6631 ecopovtrn 6910 ecopovtrng 6913 dftap2 7624 addassnqg 7756 ltsonq 7772 ltanqg 7774 ltmnqg 7775 addassnq0 7836 mulasssrg 8132 distrsrg 8133 lttrsr 8136 ltsosr 8138 ltasrg 8144 mulextsr1lem 8154 mulextsr1 8155 axmulass 8247 axdistr 8248 lemul1 8930 reapmul1lem 8931 reapmul1 8932 mulcanap 9002 mulcanap2 9003 divassap 9029 divdirap 9036 div11ap 9039 muldivdirap 9046 divcanap5 9053 apmul1 9127 apmul2 9128 ltdiv1 9207 ltmuldiv 9213 ledivmul 9216 lemuldiv 9220 ltdiv2 9226 lediv2 9230 ltdiv23 9231 lediv23 9232 xaddass2 10290 xlt2add 10300 modqdi 10851 expaddzap 11042 expmulzap 11044 leisorel 11312 resqrtcl 11818 xrbdtri 12068 dvdscmulr 12613 dvdsmulcr 12614 dvdsadd2b 12633 dvdsgcd 12815 rpexp12i 12960 pythagtriplem3 13076 pcpremul 13102 pceu 13104 pcqmul 13112 pcqdiv 13116 f1ocpbllem 13691 ercpbl 13712 erlecpbl 13713 cmn4 14199 ablsub4 14208 abladdsub4 14209 lidlsubcl 14934 psmetlecl 15572 xmetlecl 15605 wlkl1loop 16816 |
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