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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 1991 ceqsalt 2712 sbceqal 2964 csbiebt 3039 rspcsbela 3059 preqr1g 3693 repizf2 4086 copsexg 4166 onun2 4406 suc11g 4472 elrnrexdm 5559 isoselem 5721 riotass2 5756 oawordriexmid 6366 nnm00 6425 ecopovtrn 6526 ecopovtrng 6529 infglbti 6912 difinfsnlem 6984 enq0tr 7242 addnqprl 7337 addnqpru 7338 mulnqprl 7376 mulnqpru 7377 recexprlemss1l 7443 recexprlemss1u 7444 cauappcvgprlemdisj 7459 mulextsr1lem 7588 pitonn 7656 rereceu 7697 cnegexlem1 7937 ltadd2 8181 eqord2 8246 mulext 8376 mulgt1 8621 lt2halves 8955 addltmul 8956 nzadd 9106 zextlt 9143 recnz 9144 zeo 9156 peano5uzti 9159 irradd 9438 irrmul 9439 xltneg 9619 xleadd1 9658 icc0r 9709 fznuz 9882 uznfz 9883 facndiv 10485 rennim 10774 abs00ap 10834 absle 10861 cau3lem 10886 caubnd2 10889 climshft 11073 subcn2 11080 mulcn2 11081 serf0 11121 cvgratnnlemnexp 11293 cvgratnnlemmn 11294 efieq1re 11478 moddvds 11502 dvdsssfz1 11550 nn0seqcvgd 11722 algcvgblem 11730 eucalglt 11738 lcmgcdlem 11758 rpmul 11779 divgcdcoprm0 11782 isprm6 11825 rpexp 11831 tgss3 12247 cnpnei 12388 cnntr 12394 hmeoopn 12480 hmeocld 12481 mulcncflem 12759 sincosq3sgn 12909 sincosq4sgn 12910 bj-peano4 13153 |
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