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| Mirrors > Home > ILE Home > Th. List > 3imtr4g | GIF version | ||
| Description: More general version of 3imtr4i 201. Useful for converting definitions in a formula. (Contributed by NM, 20-May-1996.) (Proof shortened by Wolf Lammen, 20-Dec-2013.) |
| Ref | Expression |
|---|---|
| 3imtr4g.1 | ⊢ (𝜑 → (𝜓 → 𝜒)) |
| 3imtr4g.2 | ⊢ (𝜃 ↔ 𝜓) |
| 3imtr4g.3 | ⊢ (𝜏 ↔ 𝜒) |
| Ref | Expression |
|---|---|
| 3imtr4g | ⊢ (𝜑 → (𝜃 → 𝜏)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3imtr4g.2 | . . 3 ⊢ (𝜃 ↔ 𝜓) | |
| 2 | 3imtr4g.1 | . . 3 ⊢ (𝜑 → (𝜓 → 𝜒)) | |
| 3 | 1, 2 | biimtrid 152 | . 2 ⊢ (𝜑 → (𝜃 → 𝜒)) |
| 4 | 3imtr4g.3 | . 2 ⊢ (𝜏 ↔ 𝜒) | |
| 5 | 3, 4 | imbitrrdi 162 | 1 ⊢ (𝜑 → (𝜃 → 𝜏)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 105 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
| This proof depends on definitions: df-bi 117 |
| This theorem is used by: 3anim123d 1360 3orim123d 1361 hbbid 1628 spsbim 1896 moim 2151 moimv 2153 2euswapdc 2178 nelcon3d 2526 ralim 2609 ralimdaa 2616 ralimdv2 2620 rexim 2644 reximdv2 2649 rmoim 3027 ssel 3242 sstr2 3255 ssrexf 3310 ssrmof 3311 sscon 3363 ssdif 3364 unss1 3398 ssrin 3456 sspw 3702 prel12 3896 uniss 3956 ssuni 3957 intss 3991 intssunim 3992 iunss1 4023 iinss1 4024 ss2iun 4027 disjss2 4109 disjss1 4112 ssbrd 4174 sspwb 4358 poss 4445 pofun 4459 soss 4461 sess1 4484 sess2 4485 ordwe 4725 wessep 4727 peano2 4744 finds 4749 finds2 4750 relss 4864 ssrel 4865 ssrel2 4867 ssrelrel 4877 xpsspw 4889 relop 4932 cnvss 4955 dmss 4982 dmcosseq 5056 funss 5399 imadif 5464 imain 5466 fss 5549 fun 5564 brprcneu 5691 isores3 6024 isopolem 6031 isosolem 6033 tposfn2 6542 tposfo2 6543 tposf1o2 6546 smores 6568 tfr1onlemaccex 6624 tfrcllemaccex 6637 iinerm 6886 xpdom2 7135 ssenen 7158 exmidpw 7221 exmidpweq 7222 nnnninfeq2 7475 recexprlemlol 7999 recexprlemupu 8001 axpre-ltwlin 8256 axpre-apti 8258 nnindnn 8266 nnind 9329 uzind 9767 hashfacen 11305 pfxccatin12lem2 11524 cau3lem 11902 tgcl 15307 epttop 15333 txcnp 15514 plycj 16004 gausslemma2dlem0i 16398 gausslemma2dlem1a 16399 nnnninfex 17288 |
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