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Mirrors > Home > MPE Home > Th. List > 3bitr2i | Structured version Visualization version GIF version |
Description: A chained inference from transitive law for logical equivalence. (Contributed by NM, 4-Aug-2006.) |
Ref | Expression |
---|---|
3bitr2i.1 | ⊢ (𝜑 ↔ 𝜓) |
3bitr2i.2 | ⊢ (𝜒 ↔ 𝜓) |
3bitr2i.3 | ⊢ (𝜒 ↔ 𝜃) |
Ref | Expression |
---|---|
3bitr2i | ⊢ (𝜑 ↔ 𝜃) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3bitr2i.1 | . . 3 ⊢ (𝜑 ↔ 𝜓) | |
2 | 3bitr2i.2 | . . 3 ⊢ (𝜒 ↔ 𝜓) | |
3 | 1, 2 | bitr4i 281 | . 2 ⊢ (𝜑 ↔ 𝜒) |
4 | 3bitr2i.3 | . 2 ⊢ (𝜒 ↔ 𝜃) | |
5 | 3, 4 | bitri 278 | 1 ⊢ (𝜑 ↔ 𝜃) |
Colors of variables: wff setvar class |
Syntax hints: ↔ 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: con2bi 357 xorneg2 1513 sbrimvlem 2098 dfsb7OLD 2282 2eu4 2716 2eu5 2717 2eu5OLD 2718 euxfrw 3660 euxfr 3662 euind 3663 rmo4 3669 rmo3f 3673 2reu5lem3 3696 rmo3 3818 difin 4188 axsepgfromrep 5165 reusv2lem4 5267 rabxp 5564 elvvv 5591 eliunxp 5672 elidinxp 5878 imadisj 5915 idrefALT 5940 intirr 5945 resco 6070 funcnv3 6394 fncnv 6397 fun11 6398 fununi 6399 mptfnf 6455 f1mpt 6997 mpomptx 7244 uniuni 7464 frxp 7803 oeeu 8212 ixp0x 8473 xpcomco 8590 1sdom 8705 dffi3 8879 wemapsolem 8998 cardval3 9365 kmlem4 9564 kmlem12 9572 kmlem14 9574 kmlem15 9575 kmlem16 9576 fpwwe2 10054 axgroth4 10243 ltexprlem4 10450 bitsmod 15775 pythagtrip 16161 isstruct 16488 pgpfac1 19195 pgpfac 19199 isassa 20545 basdif0 21558 ntreq0 21682 tgcmp 22006 tx1cn 22214 rnelfmlem 22557 phtpcer 23600 iscvsp 23733 caucfil 23887 minveclem1 24028 ovoliunlem1 24106 mdegleb 24665 istrkg2ld 26254 numedglnl 26937 usgr2pth0 27554 adjbd1o 29868 nelbOLD 30239 nmo 30261 dmrab 30267 difrab2 30268 mpomptxf 30442 ccfldextdgrr 31145 isros 31537 1stmbfm 31628 bnj976 32159 bnj1143 32172 bnj1533 32234 bnj864 32304 bnj983 32333 bnj1174 32385 bnj1175 32386 bnj1280 32402 cvmlift2lem12 32674 axacprim 33046 dmscut 33385 dfrecs2 33524 andnand1 33862 bj-snglc 34405 bj-disj2r 34464 bj-dfmpoa 34533 bj-mpomptALT 34534 mptsnunlem 34755 wl-df3xor2 34886 wl-df4-3mintru2 34904 wl-cases2-dnf 34917 wl-euae 34922 wl-dfralv 35006 itg2addnc 35111 asindmre 35140 brres2 35689 brxrn2 35787 dfxrn2 35788 inxpxrn 35803 refsymrel2 35963 refsymrel3 35964 dfeqvrel2 35985 dfeqvrel3 35986 isopos 36476 dihglblem6 38636 dihglb2 38638 fgraphopab 40154 ifpid2g 40201 ifpim23g 40203 rp-fakeanorass 40221 en2pr 40246 elmapintrab 40276 relnonrel 40287 undmrnresiss 40304 elintima 40354 relexp0eq 40402 iunrelexp0 40403 dffrege115 40679 frege131 40695 frege133 40697 ntrneikb 40797 onfrALTlem5 41248 onfrALTlem5VD 41591 ndisj2 41685 ndmaovcom 43761 eliunxp2 44735 mpomptx2 44736 alimp-no-surprise 45309 alsi-no-surprise 45324 |
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