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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 4701 tfisi 4734 funprg 5431 nnsucsssuc 6765 ecopovtrn 6906 ecopovtrng 6909 addassnqg 7750 distrnqg 7755 ltsonq 7766 ltanqg 7768 ltmnqg 7769 distrnq0 7827 addassnq0 7830 mulasssrg 8126 distrsrg 8127 lttrsr 8130 ltsosr 8132 ltasrg 8138 mulextsr1lem 8148 mulextsr1 8149 axmulass 8241 axdistr 8242 dmdcanap 9055 lt2msq1 9218 ltdiv2 9220 lediv2 9224 xaddass 10282 xaddass2 10283 xlt2add 10293 modqdi 10843 expaddzaplem 11033 expaddzap 11034 expmulzap 11036 swrdspsleq 11454 pfxeq 11483 ccatopth2 11504 pfxccat3 11521 resqrtcl 11810 bdtrilem 12023 bdtri 12024 xrbdtri 12060 bitsfzo 12740 prmexpb 12948 4sqlem18 13209 subgabl 14187 rng1zrlem 14309 opprringbg 14436 cnptoprest 15392 ssblps 15578 ssbl 15579 plyadd 15904 plymul 15905 rplogbchbase 16108 rplogbreexp 16111 relogbcxpbap 16123 lgssq 16281 uhgr2edg 16569 clwwlkccat 16764 |
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