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| Mirrors > Home > MPE Home > Th. List > 3bitr3d | Structured version Visualization version GIF version | ||
| Description: Deduction from transitivity of biconditional. Useful for converting conditional definitions in a formula. (Contributed by NM, 24-Apr-1996.) |
| Ref | Expression |
|---|---|
| 3bitr3d.1 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
| 3bitr3d.2 | ⊢ (𝜑 → (𝜓 ↔ 𝜃)) |
| 3bitr3d.3 | ⊢ (𝜑 → (𝜒 ↔ 𝜏)) |
| Ref | Expression |
|---|---|
| 3bitr3d | ⊢ (𝜑 → (𝜃 ↔ 𝜏)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3bitr3d.2 | . . 3 ⊢ (𝜑 → (𝜓 ↔ 𝜃)) | |
| 2 | 3bitr3d.1 | . . 3 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
| 3 | 1, 2 | bitr3d 284 | . 2 ⊢ (𝜑 → (𝜃 ↔ 𝜒)) |
| 4 | 3bitr3d.3 | . 2 ⊢ (𝜑 → (𝜒 ↔ 𝜏)) | |
| 5 | 3, 4 | bitrd 282 | 1 ⊢ (𝜑 → (𝜃 ↔ 𝜏)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
| This theorem depends on definitions: df-bi 210 |
| This theorem is referenced by: sbcne12 4372 fnprb 7196 fntpb 7197 eqfunresadj 7348 eloprabga 7509 ordsucuniel 7808 ordsucun 7809 mpof1o2d 8109 oeoa 8571 ereldm 8736 boxcutc 8927 mapen 9117 mapfien 9356 wemapwe 9654 sdom2en01 10274 prlem936 11020 subcan 11501 mulcan1g 11855 conjmul 11923 ltrec 12088 rebtwnz 12962 xposdif 13279 divelunit 13512 fseq1m1p1 13618 fzm1 13626 fllt 13830 hashfacen 14481 hashf1 14484 ccat0 14603 sgnmulsgn 15136 lenegsq 15362 dvdsmod 16377 bitsmod 16484 smueqlem 16538 rpexp 16771 eulerthlem2 16831 odzdvds 16845 pcelnn 16920 xpsle 17623 isepi 17787 fthmon 17976 cat1 18144 pospropd 18371 grpidpropd 18710 mgmhmpropd 18746 sgrppropd 18779 mndpropd 18807 mhmpropd 18840 grppropd 19008 ghmnsgima 19301 mndodcong 19603 odf1 19623 odf1o1 19633 sylow3lem6 19693 lsmcntzr 19741 efgredlema 19801 cmnpropd 19852 qusecsub 19896 dprdf11 20086 rngpropd 20243 ringpropd 20362 dvdsrpropd 20489 resrhm2b 20678 abvpropd 20907 isorng 20933 lmodprop2d 21014 lsspropd 21107 lmhmpropd 21163 lbspropd 21189 lvecvscan 21204 lvecvscan2 21205 chrnzr 21640 zndvds0 21660 ip2eq 21763 phlpropd 21765 assapropd 21981 qtopcn 23832 tsmsf1o 24263 xmetgt0 24476 txmetcnp 24665 metustsym 24673 nlmmul0or 24801 cnmet 24889 evth 25079 isclmp 25217 minveclem3b 25548 mbfposr 25772 itg2cn 25883 iblcnlem 25909 dvcvx 26140 ulm2 26506 efeq1 26651 dcubic 26969 mcubic 26970 dquart 26976 birthdaylem3 27076 ftalem2 27196 issqf 27258 sqff1o 27304 bposlem7 27412 lgsabs1 27458 gausslemma2dlem1a 27487 lgsquadlem2 27503 addsq2reu 27562 dchrisum0lem1 27638 sltssnb 27920 ltsrec 27952 opphllem6 28983 colhp 29001 lmiinv 29044 lmiopp 29054 wlkeq 29892 eupth2lem3lem3 30490 eupth2lem3lem6 30493 nmounbi 31037 ip2eqi 31117 hvmulcan 31333 hvsubcan2 31336 hi2eq 31366 fh2 31880 riesz4i 32324 cvbr4i 32628 sgnmulsgp 33089 xdivpnfrp 33165 qusker 33584 ellspds 33598 ply1moneq 33795 ballotlemfc0 34800 ballotlemfcc 34801 subfacp1lem5 35547 topfneec2 36729 neibastop3 36735 unccur 38114 cos2h 38122 tan2h 38123 poimirlem25 38156 poimirlem27 38158 dvasin 38215 caures 38271 ismtyima 38314 isdmn3 38585 dmecd 38821 releldmqscoss 39256 tendospcanN 41659 dochsncom 42018 sqrtcval 44229 or3or 44611 neicvgel1 44707 rusbcALT 45012 sbcoreleleqVD 45432 climreeq 46187 coseq0 46436 modmkpkne 47959 affinecomb1 49333 eenglngeehlnmlem1 49368 2sphere 49380 line2 49383 itscnhlc0yqe 49390 itscnhlc0xyqsol 49396 oduoppcciso 50195 |
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