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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 143 | . 2 ⊢ (𝜑 → (𝜒 → 𝜃)) |
4 | 1, 3 | syld 45 | 1 ⊢ (𝜑 → (𝜓 → 𝜃)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ↔ wb 104 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 |
This theorem depends on definitions: df-bi 116 |
This theorem is referenced by: 3imtr3d 201 dvelimdf 1992 ceqsalt 2715 sbceqal 2968 csbiebt 3044 rspcsbela 3064 preqr1g 3701 repizf2 4094 copsexg 4174 onun2 4414 suc11g 4480 elrnrexdm 5567 isoselem 5729 riotass2 5764 oawordriexmid 6374 nnm00 6433 ecopovtrn 6534 ecopovtrng 6537 infglbti 6920 difinfsnlem 6992 enq0tr 7266 addnqprl 7361 addnqpru 7362 mulnqprl 7400 mulnqpru 7401 recexprlemss1l 7467 recexprlemss1u 7468 cauappcvgprlemdisj 7483 mulextsr1lem 7612 pitonn 7680 rereceu 7721 cnegexlem1 7961 ltadd2 8205 eqord2 8270 mulext 8400 mulgt1 8645 lt2halves 8979 addltmul 8980 nzadd 9130 zextlt 9167 recnz 9168 zeo 9180 peano5uzti 9183 irradd 9465 irrmul 9466 xltneg 9649 xleadd1 9688 icc0r 9739 fznuz 9913 uznfz 9914 facndiv 10517 rennim 10806 abs00ap 10866 absle 10893 cau3lem 10918 caubnd2 10921 climshft 11105 subcn2 11112 mulcn2 11113 serf0 11153 cvgratnnlemnexp 11325 cvgratnnlemmn 11326 efieq1re 11514 moddvds 11538 dvdsssfz1 11586 nn0seqcvgd 11758 algcvgblem 11766 eucalglt 11774 lcmgcdlem 11794 rpmul 11815 divgcdcoprm0 11818 isprm6 11861 rpexp 11867 tgss3 12286 cnpnei 12427 cnntr 12433 hmeoopn 12519 hmeocld 12520 mulcncflem 12798 sincosq3sgn 12957 sincosq4sgn 12958 bj-peano4 13324 |
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