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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 4299 copsexg 4384 onun2 4637 suc11g 4704 elrnrexdm 5847 isoselem 6026 riotass2 6067 oawordriexmid 6743 nnm00 6803 ecopovtrn 6906 ecopovtrng 6909 infglbti 7365 difinfsnlem 7439 enq0tr 7801 addnqprl 7896 addnqpru 7897 mulnqprl 7935 mulnqpru 7936 recexprlemss1l 8002 recexprlemss1u 8003 cauappcvgprlemdisj 8018 mulextsr1lem 8147 pitonn 8215 rereceu 8256 cnegexlem1 8501 ltadd2 8747 eqord2 8812 mulext 8943 mulgt1 9194 lt2halves 9543 addltmul 9544 nzadd 9699 ltsubnn0 9714 zextlt 9740 recnz 9741 zeo 9753 peano5uzti 9756 irradd 10048 irrmul 10049 xltneg 10240 xleadd1 10279 icc0r 10330 fznuz 10511 uznfz 10512 facndiv 11179 hashf1 11289 ccatalpha 11383 swrdccatin2 11503 swrdccatin2d 11518 rennim 11770 abs00ap 11830 absle 11857 cau3lem 11882 caubnd2 11885 climshft 12072 subcn2 12079 mulcn2 12080 serf0 12120 cvgratnnlemnexp 12293 cvgratnnlemmn 12294 efieq1re 12541 moddvds 12568 dvdsssfz1 12621 nn0seqcvgd 12821 algcvgblem 12829 eucalglt 12837 lcmgcdlem 12857 rpmul 12878 divgcdcoprm0 12881 isprm6 12927 rpexp 12933 eulerthlema 13010 eulerthlemh 13011 prmdiv 13015 pcprendvds2 13072 pcz 13113 pcprmpw 13115 pcadd2 13122 pcfac 13131 expnprm 13134 imasgrp2 13915 issubg4m 13998 znidomb 14995 tgss3 15181 cnpnei 15322 cnntr 15328 hmeoopn 15414 hmeocld 15415 mulcncflem 15710 plycolemc 15861 sincosq3sgn 15932 sincosq4sgn 15933 perfect1 16118 lgsdir2lem4 16162 lgsne0 16169 lgsquad2lem2 16213 2sqlem8a 16253 clwwlkext2edg 16675 bj-peano4 16993 iswomni0 17113 |
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