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| Mirrors > Home > ILE Home > Th. List > 3imtr4d | GIF version | ||
| Description: More general version of 3imtr4i 201. Useful for converting conditional definitions in a formula. (Contributed by NM, 26-Oct-1995.) |
| Ref | Expression |
|---|---|
| 3imtr4d.1 | ⊢ (𝜑 → (𝜓 → 𝜒)) |
| 3imtr4d.2 | ⊢ (𝜑 → (𝜃 ↔ 𝜓)) |
| 3imtr4d.3 | ⊢ (𝜑 → (𝜏 ↔ 𝜒)) |
| Ref | Expression |
|---|---|
| 3imtr4d | ⊢ (𝜑 → (𝜃 → 𝜏)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3imtr4d.2 | . 2 ⊢ (𝜑 → (𝜃 ↔ 𝜓)) | |
| 2 | 3imtr4d.1 | . . 3 ⊢ (𝜑 → (𝜓 → 𝜒)) | |
| 3 | 3imtr4d.3 | . . 3 ⊢ (𝜑 → (𝜏 ↔ 𝜒)) | |
| 4 | 2, 3 | sylibrd 169 | . 2 ⊢ (𝜑 → (𝜓 → 𝜏)) |
| 5 | 1, 4 | sylbid 150 | 1 ⊢ (𝜑 → (𝜃 → 𝜏)) |
| 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 ax-ia2 107 ax-ia3 108 |
| This theorem depends on definitions: df-bi 117 |
| This theorem is referenced by: onsucelsucr 4604 unielrel 5262 ovmpos 6140 caofrss 6262 caoftrn 6263 f1o2ndf1 6388 nnaord 6672 nnmord 6680 oviec 6805 pmss12g 6839 fiss 7167 pm54.43 7386 ltsopi 7530 lttrsr 7972 ltsosr 7974 aptisr 7989 mulextsr1 7991 axpre-mulext 8098 axltwlin 8237 axlttrn 8238 axltadd 8239 axmulgt0 8241 letr 8252 eqord1 8653 remulext1 8769 mulext1 8782 recexap 8823 prodge0 9024 lt2msq 9056 nnge1 9156 zltp1le 9524 uzss 9767 eluzp1m1 9770 xrletr 10033 ixxssixx 10127 zesq 10910 expcanlem 10967 expcan 10968 nn0opthd 10974 wrdind 11293 wrd2ind 11294 pfxccatin12lem3 11303 maxleast 11764 climshftlemg 11853 dvds1lem 12353 bezoutlemzz 12563 algcvg 12610 eucalgcvga 12620 rpexp12i 12717 crth 12786 pc2dvds 12893 pcmpt 12906 prmpwdvds 12918 1arith 12930 ercpbl 13404 insubm 13558 subginv 13758 rngpropd 13958 dvdsunit 14116 subrgdvds 14239 tgss 14777 neipsm 14868 ssrest 14896 cos11 15567 lgsdir2lem4 15750 gausslemma2dlem1a 15777 m1lgs 15804 |
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