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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 1996 ceqsalt 2738 sbceqal 2992 csbiebt 3070 rspcsbela 3090 preqr1g 3729 repizf2 4123 copsexg 4204 onun2 4448 suc11g 4515 elrnrexdm 5605 isoselem 5767 riotass2 5803 oawordriexmid 6414 nnm00 6473 ecopovtrn 6574 ecopovtrng 6577 infglbti 6965 difinfsnlem 7037 enq0tr 7348 addnqprl 7443 addnqpru 7444 mulnqprl 7482 mulnqpru 7483 recexprlemss1l 7549 recexprlemss1u 7550 cauappcvgprlemdisj 7565 mulextsr1lem 7694 pitonn 7762 rereceu 7803 cnegexlem1 8044 ltadd2 8288 eqord2 8353 mulext 8483 mulgt1 8728 lt2halves 9062 addltmul 9063 nzadd 9213 zextlt 9250 recnz 9251 zeo 9263 peano5uzti 9266 irradd 9548 irrmul 9549 xltneg 9733 xleadd1 9772 icc0r 9823 fznuz 9997 uznfz 9998 facndiv 10606 rennim 10895 abs00ap 10955 absle 10982 cau3lem 11007 caubnd2 11010 climshft 11194 subcn2 11201 mulcn2 11202 serf0 11242 cvgratnnlemnexp 11414 cvgratnnlemmn 11415 efieq1re 11661 moddvds 11688 dvdsssfz1 11736 nn0seqcvgd 11909 algcvgblem 11917 eucalglt 11925 lcmgcdlem 11945 rpmul 11966 divgcdcoprm0 11969 isprm6 12012 rpexp 12018 eulerthlema 12093 eulerthlemh 12094 prmdiv 12098 tgss3 12449 cnpnei 12590 cnntr 12596 hmeoopn 12682 hmeocld 12683 mulcncflem 12961 sincosq3sgn 13120 sincosq4sgn 13121 bj-peano4 13501 iswomni0 13593 |
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