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| Mirrors > Home > ILE Home > Th. List > sylibd | GIF version | ||
| Description: A syllogism deduction. (Contributed by NM, 3-Aug-1994.) |
| Ref | Expression |
|---|---|
| sylibd.1 | ⊢ (𝜑 → (𝜓 → 𝜒)) |
| sylibd.2 | ⊢ (𝜑 → (𝜒 ↔ 𝜃)) |
| Ref | Expression |
|---|---|
| sylibd | ⊢ (𝜑 → (𝜓 → 𝜃)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylibd.1 | . 2 ⊢ (𝜑 → (𝜓 → 𝜒)) | |
| 2 | sylibd.2 | . . 3 ⊢ (𝜑 → (𝜒 ↔ 𝜃)) | |
| 3 | 2 | biimpd 144 | . 2 ⊢ (𝜑 → (𝜒 → 𝜃)) |
| 4 | 1, 3 | syld 45 | 1 ⊢ (𝜑 → (𝜓 → 𝜃)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 105 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 |
| This proof depends on definitions: df-bi 117 |
| This theorem is used by: 3imtr3d 202 dvelimdf 2076 ceqsalt 2848 sbceqal 3107 csbiebt 3187 rspcsbela 3207 preqr1g 3891 repizf2 4301 copsexg 4386 onun2 4639 suc11g 4706 elrnrexdm 5850 isoselem 6029 riotass2 6070 oawordriexmid 6747 nnm00 6807 ecopovtrn 6910 ecopovtrng 6913 infglbti 7372 difinfsnlem 7446 enq0tr 7808 addnqprl 7903 addnqpru 7904 mulnqprl 7942 mulnqpru 7943 recexprlemss1l 8009 recexprlemss1u 8010 cauappcvgprlemdisj 8025 mulextsr1lem 8154 pitonn 8222 rereceu 8263 cnegexlem1 8509 ltadd2 8755 eqord2 8820 mulext 8951 mulgt1 9202 lt2halves 9553 addltmul 9554 nzadd 9709 ltsubnn0 9724 zextlt 9750 recnz 9751 zeo 9763 peano5uzti 9766 irradd 10063 irrmul 10065 xltneg 10256 xleadd1 10295 icc0r 10346 fznuz 10527 uznfz 10528 facndiv 11200 hashf1 11310 ccatalpha 11404 swrdccatin2 11524 swrdccatin2d 11539 rennim 11791 abs00ap 11851 absle 11879 cau3lem 11904 caubnd2 11907 climshft 12096 subcn2 12103 mulcn2 12104 serf0 12144 cvgratnnlemnexp 12317 cvgratnnlemmn 12318 efieq1re 12565 moddvds 12592 dvdsssfz1 12645 nn0seqcvgd 12845 algcvgblem 12853 eucalglt 12861 lcmgcdlem 12881 rpmul 12902 divgcdcoprm0 12905 isprm6 12952 rpexp 12958 eulerthlema 13038 eulerthlemh 13039 prmdiv 13043 pcprendvds2 13100 pcz 13141 pcprmpw 13143 pcadd2 13150 pcfac 13159 expnprm 13162 imasgrp2 13973 issubg4m 14056 znidomb 15103 tgss3 15316 cnpnei 15457 cnntr 15463 hmeoopn 15549 hmeocld 15550 mulcncflem 15845 plycolemc 15996 sincosq3sgn 16067 sincosq4sgn 16068 sineq0re 16088 chtqub 16308 perfect1 16310 lgsdir2lem4 16367 lgsne0 16374 lgsquad2lem2 16418 2sqlem8a 16458 clwwlkext2edg 16880 bj-peano4 17198 iswomni0 17320 |
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