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Related theorems GIF version |
| Description: More general version of 3bitr4 158. Useful for converting definitions in a formula. |
| Ref | Expression |
|---|---|
| 3bitr4g.1 | ⊢ (φ → (ψ ↔ χ)) |
| 3bitr4g.2 | ⊢ (θ ↔ ψ) |
| 3bitr4g.3 | ⊢ (τ ↔ χ) |
| Ref | Expression |
|---|---|
| 3bitr4g | ⊢ (φ → (θ ↔ τ)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3bitr4g.1 | . . 3 ⊢ (φ → (ψ ↔ χ)) | |
| 2 | 3bitr4g.2 | . . 3 ⊢ (θ ↔ ψ) | |
| 3 | 1, 2 | syl5bb 410 | . 2 ⊢ (φ → (θ ↔ χ)) |
| 4 | 3bitr4g.3 | . 2 ⊢ (τ ↔ χ) | |
| 5 | 3, 4 | syl6bbr 416 | 1 ⊢ (φ → (θ ↔ τ)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ↔ wb 127 |
| This theorem is referenced by: imbi1d 465 orbi2d 466 orbi1d 467 anbi1d 469 bibi2d 470 bibi1d 471 pm5.32rd 492 bi3ord 635 bi3and 636 cbvexd 978 sbal2 1005 bieud 1012 bimod 1030 cleq1 1107 cleq2 1110 eleq1 1149 eleq2 1150 neeq1 1194 neeq2 1195 neleq1 1199 neleq2 1200 biralda 1213 birexda 1214 biraldv2 1221 birexdv2 1222 bireudva 1317 raleqf 1321 rexeqf 1322 reueqf 1323 eueq3 1430 dfsbcq 1442 psseq1 1559 psseq2 1560 ssconb 1598 uneq1 1605 ineq1 1638 undif4 1744 iindif2 2033 iununi 2037 iunpw 2040 treq 2047 breq 2064 breq1 2065 breq2 2066 brprc 2097 poeq1 2130 soeq1 2141 freq1 2174 weeq1 2189 weeq2 2190 ordeq 2206 limeq 2211 ordunisssuc 2334 tfinds 2401 opelxpex 2445 opthprc 2457 releq 2477 cleqrel 2483 cores 2659 imadif 2714 fneq1 2718 fneq2 2719 feq1 2748 feq2 2749 feq3 2750 f1eq1 2776 f1eq2 2777 f1eq3 2778 foeq1 2784 foeq2 2785 foeq3 2786 f1oeq1 2795 f1oeq2 2796 f1oeq3 2797 fvelrn 2883 f1fv 2916 cbvfo 2923 cbvexfo 2924 isoeq1 2925 isoeq2 2926 isoeq3 2927 isoeq4 2928 isoeq5 2929 isomin 2937 isowe 2941 ereq 3206 erthi 3218 erthdmr 3221 nnsdomo 3417 isfinite2 3437 cardsdom 3643 aleph11 3684 alephiso 3697 ltapq 3870 ltmpq 3871 genpass 3906 distrlem1pr 3921 1idpr 3927 ltasr 4003 ltsor 4055 muln0bt 4213 divneq0bt 4230 lemul2 4396 le2sq 4415 sq11 4416 nn0ennn 4925 ocin 5177 pjthut 5243 chpsscon3t 5420 elat2 5739 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 |
| This theorem depends on definitions: df-bi 128 df-an 198 |