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Related theorems GIF version |
| Description: More general version of 3imtr4i 217. Useful for converting definitions in a formula. |
| 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.1 | . 2 ⊢ (φ → (ψ → χ)) | |
| 2 | 3imtr4g.2 | . . 3 ⊢ (θ ↔ ψ) | |
| 3 | 2 | bicomi 170 | . 2 ⊢ (ψ ↔ θ) |
| 4 | 3imtr4g.3 | . . 3 ⊢ (τ ↔ χ) | |
| 5 | 4 | bicomi 170 | . 2 ⊢ (χ ↔ τ) |
| 6 | 1, 3, 5 | 3imtr3g 555 | 1 ⊢ (φ → (θ → τ)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 3 ↔ wb 144 |
| This theorem is referenced by: pm3.48 560 pm5.74 586 ordi 599 3anim123d 906 3orim123d 907 19.22 1075 hbbid 1148 a12stdy1 1411 a12studyALT 1418 immo 1456 moimv 1458 2euswap 1485 hbabd 1510 r19.20 1748 r19.20da 1754 r19.20dv2 1757 r19.22dv2 1782 moeq3 1967 2reuswap 1983 hbcsb1g 2075 hbcsbg 2077 ssel 2115 sstr2 2123 sscon 2223 ssdif 2224 unss1 2251 ssrin 2286 difin0ss 2385 r19.2z 2401 prel12 2549 ssuni 2589 intss 2621 intssuni 2622 ss2iun 2645 iununi 2686 ssbrd 2729 sspwb 2835 poss 2919 soss 2931 frss 2951 wess 2963 dfwe2 3140 onint 3152 orduniorsuc 3184 finds 3244 finds2 3246 relss 3333 ssxp 3345 relop 3365 cnvss 3381 dmss 3401 dffun8 3645 fun 3748 isomin 4013 f1oweALT 4020 tz7.48lem 4256 tz7.48-3 4259 oaass 4331 ss2ixp 4495 xpdom2 4583 ensdomtr 4616 domsdomtr 4621 mapenlem2 4637 mapdom2 4641 ssenen 4651 pssnn 4681 r1pwcl 4833 zorn2lem4 4937 zorn2lem7 4940 ondomon 5006 cfub 5058 1pr 5271 addclprlem2 5273 distrlem1pr 5281 psslinpr 5289 ltexprlem3 5298 ltexprlem4 5299 reclem2pr 5311 suplem1pr 5315 suppsr2 5377 suppsr3 5378 axrrecex 5438 ltmullem 5794 prodge0i 5960 nnind 6082 sup2 6219 nnunb 6238 xrsupsslem 6244 xrinfmsslem 6245 supxrre 6251 uzind 6376 elioc2 6516 elico2 6517 elicc2 6518 caucvglem4 7363 efseq0ex 7516 infdif2 7781 tgcl 7836 ubthlem6 8792 chsscmi 9388 occon 9436 chintcli 9571 shlessi 9623 h1de2i 9752 spansnm0i 9873 strlem1 10458 mdslmd1i 10537 uninqs 10730 eqindhome 11047 qusp 11068 lpni 11417 fictb 11423 ordtypelem4 11430 hartog 11436 compcov 11486 compsub 11488 alexsublem3 11498 cnconn 11503 isfne3 11543 topbasfne 11560 fnessref 11564 neibastop1 11579 neibastop2 11584 fbssint 11626 ufileu 11658 ufinffr 11663 ufilen 11664 fmfnfmlem3 11702 fcluscf 11724 filnetlem3 11765 filnetlem4 11766 sstotbnd 11992 bfp 12065 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 145 df-an 223 |