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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 1989 ceqsalt 2707 sbceqal 2959 csbiebt 3034 rspcsbela 3054 preqr1g 3688 repizf2 4081 copsexg 4161 onun2 4401 suc11g 4467 elrnrexdm 5552 isoselem 5714 riotass2 5749 oawordriexmid 6359 nnm00 6418 ecopovtrn 6519 ecopovtrng 6522 infglbti 6905 difinfsnlem 6977 enq0tr 7235 addnqprl 7330 addnqpru 7331 mulnqprl 7369 mulnqpru 7370 recexprlemss1l 7436 recexprlemss1u 7437 cauappcvgprlemdisj 7452 mulextsr1lem 7581 pitonn 7649 rereceu 7690 cnegexlem1 7930 ltadd2 8174 eqord2 8239 mulext 8369 mulgt1 8614 lt2halves 8948 addltmul 8949 nzadd 9099 zextlt 9136 recnz 9137 zeo 9149 peano5uzti 9152 irradd 9431 irrmul 9432 xltneg 9612 xleadd1 9651 icc0r 9702 fznuz 9875 uznfz 9876 facndiv 10478 rennim 10767 abs00ap 10827 absle 10854 cau3lem 10879 caubnd2 10882 climshft 11066 subcn2 11073 mulcn2 11074 serf0 11114 cvgratnnlemnexp 11286 cvgratnnlemmn 11287 efieq1re 11467 moddvds 11491 dvdsssfz1 11539 nn0seqcvgd 11711 algcvgblem 11719 eucalglt 11727 lcmgcdlem 11747 rpmul 11768 divgcdcoprm0 11771 isprm6 11814 rpexp 11820 tgss3 12236 cnpnei 12377 cnntr 12383 hmeoopn 12469 hmeocld 12470 mulcncflem 12748 sincosq3sgn 12898 sincosq4sgn 12899 bj-peano4 13142 |
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