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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 |
| Syntax hints: → wi 4 ↔ wb 105 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 |
| This theorem depends on definitions: df-bi 117 |
| This theorem is referenced by: 3imtr3d 202 dvelimdf 2067 ceqsalt 2827 sbceqal 3085 csbiebt 3165 rspcsbela 3185 preqr1g 3847 repizf2 4250 copsexg 4334 onun2 4586 suc11g 4653 elrnrexdm 5782 isoselem 5956 riotass2 5995 oawordriexmid 6633 nnm00 6693 ecopovtrn 6796 ecopovtrng 6799 infglbti 7218 difinfsnlem 7292 enq0tr 7647 addnqprl 7742 addnqpru 7743 mulnqprl 7781 mulnqpru 7782 recexprlemss1l 7848 recexprlemss1u 7849 cauappcvgprlemdisj 7864 mulextsr1lem 7993 pitonn 8061 rereceu 8102 cnegexlem1 8347 ltadd2 8592 eqord2 8657 mulext 8787 mulgt1 9036 lt2halves 9373 addltmul 9374 nzadd 9525 ltsubnn0 9540 zextlt 9565 recnz 9566 zeo 9578 peano5uzti 9581 irradd 9873 irrmul 9874 xltneg 10064 xleadd1 10103 icc0r 10154 fznuz 10330 uznfz 10331 facndiv 10994 ccatalpha 11183 swrdccatin2 11303 swrdccatin2d 11318 rennim 11556 abs00ap 11616 absle 11643 cau3lem 11668 caubnd2 11671 climshft 11858 subcn2 11865 mulcn2 11866 serf0 11906 cvgratnnlemnexp 12078 cvgratnnlemmn 12079 efieq1re 12326 moddvds 12353 dvdsssfz1 12406 nn0seqcvgd 12606 algcvgblem 12614 eucalglt 12622 lcmgcdlem 12642 rpmul 12663 divgcdcoprm0 12666 isprm6 12712 rpexp 12718 eulerthlema 12795 eulerthlemh 12796 prmdiv 12800 pcprendvds2 12857 pcz 12898 pcprmpw 12900 pcadd2 12907 pcfac 12916 expnprm 12919 imasgrp2 13690 issubg4m 13773 znidomb 14665 tgss3 14795 cnpnei 14936 cnntr 14942 hmeoopn 15028 hmeocld 15029 mulcncflem 15324 plycolemc 15475 sincosq3sgn 15545 sincosq4sgn 15546 perfect1 15715 lgsdir2lem4 15753 lgsne0 15760 lgsquad2lem2 15804 2sqlem8a 15844 clwwlkext2edg 16231 bj-peano4 16500 iswomni0 16605 |
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