| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 4173 sspwb 4356 poss 4443 pofun 4457 soss 4459 sess1 4482 sess2 4483 ordwe 4723 wessep 4725 peano2 4742 finds 4747 finds2 4748 relss 4862 ssrel 4863 ssrel2 4865 ssrelrel 4875 xpsspw 4887 relop 4930 cnvss 4953 dmss 4980 dmcosseq 5054 funss 5396 imadif 5461 imain 5463 fss 5546 fun 5561 brprcneu 5688 isores3 6021 isopolem 6028 isosolem 6030 tposfn2 6537 tposfo2 6538 tposf1o2 6541 smores 6563 tfr1onlemaccex 6619 tfrcllemaccex 6632 iinerm 6881 xpdom2 7129 ssenen 7152 exmidpw 7215 exmidpweq 7216 nnnninfeq2 7469 recexprlemlol 7993 recexprlemupu 7995 axpre-ltwlin 8250 axpre-apti 8252 nnindnn 8260 nnind 9320 uzind 9757 hashfacen 11284 pfxccatin12lem2 11503 cau3lem 11880 tgcl 15165 epttop 15191 txcnp 15372 plycj 15862 gausslemma2dlem0i 16176 gausslemma2dlem1a 16177 nnnninfex 17065 |
| Copyright terms: Public domain | W3C validator |