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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 4464 tfisi 4734 tfrlem5 6585 tfrlemibxssdm 6598 tfr1onlembxssdm 6614 tfrcllembxssdm 6627 ecopovtrn 6906 ecopovtrng 6909 dftap2 7617 addassnqg 7749 ltsonq 7765 ltanqg 7767 ltmnqg 7768 addassnq0 7829 mulasssrg 8125 distrsrg 8126 lttrsr 8129 ltsosr 8131 ltasrg 8137 mulextsr1lem 8147 mulextsr1 8148 axmulass 8240 axdistr 8241 lemul1 8922 reapmul1lem 8923 reapmul1 8924 mulcanap 8994 mulcanap2 8995 divassap 9021 divdirap 9028 div11ap 9031 muldivdirap 9038 divcanap5 9045 apmul1 9119 apmul2 9120 ltdiv1 9199 ltmuldiv 9205 ledivmul 9208 lemuldiv 9212 ltdiv2 9218 lediv2 9222 ltdiv23 9223 lediv23 9224 xaddass2 10274 xlt2add 10284 modqdi 10831 expaddzap 11022 expmulzap 11024 leisorel 11291 resqrtcl 11797 xrbdtri 12044 dvdscmulr 12589 dvdsmulcr 12590 dvdsadd2b 12609 dvdsgcd 12791 rpexp12i 12935 pythagtriplem3 13048 pcpremul 13074 pceu 13076 pcqmul 13084 pcqdiv 13088 f1ocpbllem 13633 ercpbl 13654 erlecpbl 13655 cmn4 14110 ablsub4 14119 abladdsub4 14120 lidlsubcl 14826 psmetlecl 15437 xmetlecl 15470 wlkl1loop 16611 |
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