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Mirrors > Home > MPE Home > Th. List > 3bitr3i | Structured version Visualization version GIF version |
Description: A chained inference from transitive law for logical equivalence. (Contributed by NM, 19-Aug-1993.) |
Ref | Expression |
---|---|
3bitr3i.1 | ⊢ (𝜑 ↔ 𝜓) |
3bitr3i.2 | ⊢ (𝜑 ↔ 𝜒) |
3bitr3i.3 | ⊢ (𝜓 ↔ 𝜃) |
Ref | Expression |
---|---|
3bitr3i | ⊢ (𝜒 ↔ 𝜃) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3bitr3i.2 | . . 3 ⊢ (𝜑 ↔ 𝜒) | |
2 | 3bitr3i.1 | . . 3 ⊢ (𝜑 ↔ 𝜓) | |
3 | 1, 2 | bitr3i 279 | . 2 ⊢ (𝜒 ↔ 𝜓) |
4 | 3bitr3i.3 | . 2 ⊢ (𝜓 ↔ 𝜃) | |
5 | 3, 4 | bitri 277 | 1 ⊢ (𝜒 ↔ 𝜃) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 |
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 209 |
This theorem is referenced by: an33rean 1479 xorass 1506 cbvaldvaw 2044 sbievw2 2106 sbco4lem 2282 cbval2vOLD 2363 cbvex 2416 cbvexvOLD 2420 cbval2OLD 2432 sbco2d 2553 sbcom 2555 sb7f 2567 sb7fALT 2615 eq2tri 2886 clelsb3vOLD 2944 clelsb3fw 2984 clelsb3f 2985 clelsb3fOLD 2986 cbvraldva2 3459 cbvrexdva2 3460 cbvrexdva2OLD 3461 ralcom4OLD 3528 rexcom4OLD 3529 ceqsralt 3531 gencbvex 3552 gencbval 3554 ceqsrexbv 3653 euind 3718 reuind 3747 sbccomlem 3856 sbccom 3857 csbcom 4372 difcom 4437 eqsn 4765 uniintsn 4916 disjxun 5067 reusv2lem4 5305 exss 5358 opab0 5444 opelinxp 5634 eqbrriv 5667 dm0rn0 5798 elidinxp 5914 qfto 5984 rninxp 6039 coeq0 6111 fununi 6432 dffv2 6759 fndmin 6818 fnprb 6974 fntpb 6975 dfoprab2 7215 dfer2 8293 eceqoveq 8405 euen1 8582 xpsnen 8604 xpassen 8614 marypha2lem3 8904 rankuni 9295 card1 9400 alephislim 9512 dfacacn 9570 kmlem4 9582 ac6num 9904 zorn2lem4 9924 mappsrpr 10533 sqeqori 13579 trclublem 14358 fprodle 15353 vdwmc2 16318 txflf 22617 metustid 23167 caucfil 23889 ovolgelb 24084 dfcgra2 26619 axcontlem5 26757 frgr3v 28057 nmoubi 28552 hvsubaddi 28846 hlimeui 29020 omlsilem 29182 pjoml3i 29366 hodsi 29555 nmopub 29688 nmfnleub 29705 nmopcoadj0i 29883 pjin3i 29974 or3dir 30229 ralcom4f 30236 rexcom4f 30237 uniinn0 30305 ordtconnlem1 31171 bnj62 31994 bnj610 32022 bnj1143 32066 bnj1533 32128 bnj543 32169 bnj545 32171 bnj594 32188 cusgracyclt3v 32407 ceqsralv2 32960 brsuccf 33406 brfullfun 33413 filnetlem4 33733 icorempo 34636 poimirlem13 34909 poimirlem14 34910 poimirlem21 34917 poimirlem22 34918 poimir 34929 sbccom2lem 35406 alrmomorn 35616 dfeldisj5 35958 isltrn2N 37260 moxfr 39295 ifporcor 39833 ifpancor 39835 ifpbicor 39847 ifpnorcor 39852 ifpnancor 39853 ifpororb 39877 relexp0eq 40052 hashnzfzclim 40660 pm11.6 40730 sbc3or 40872 cbvexsv 40887 dfich2 43620 ichbi12i 43625 sprvalpwn0 43652 copisnmnd 44083 |
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