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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 280 | . 2 ⊢ (𝜑 ↔ 𝜒) |
4 | 3bitr2i.3 | . 2 ⊢ (𝜒 ↔ 𝜃) | |
5 | 3, 4 | bitri 277 | 1 ⊢ (𝜑 ↔ 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: con2bi 356 xorneg2 1512 sbrimvlem 2101 dfsb7OLD 2286 2eu4 2739 2eu5 2740 2eu5OLD 2741 euxfrw 3712 euxfr 3714 euind 3715 rmo4 3721 rmo3f 3725 2reu5lem3 3748 rmo3 3872 rmo3OLD 3873 difin 4238 axsepgfromrep 5201 reusv2lem4 5302 rabxp 5600 elvvv 5627 eliunxp 5708 elidinxp 5911 imadisj 5948 idrefALT 5973 intirr 5978 resco 6103 funcnv3 6424 fncnv 6427 fun11 6428 fununi 6429 mptfnf 6483 f1mpt 7019 mpomptx 7265 uniuni 7484 frxp 7820 oeeu 8229 ixp0x 8490 xpcomco 8607 1sdom 8721 dffi3 8895 wemapsolem 9014 cardval3 9381 kmlem4 9579 kmlem12 9587 kmlem14 9589 kmlem15 9590 kmlem16 9591 fpwwe2 10065 axgroth4 10254 ltexprlem4 10461 bitsmod 15785 pythagtrip 16171 isstruct 16496 pgpfac1 19202 pgpfac 19206 isassa 20088 basdif0 21561 ntreq0 21685 tgcmp 22009 tx1cn 22217 rnelfmlem 22560 phtpcer 23599 iscvsp 23732 caucfil 23886 minveclem1 24027 ovoliunlem1 24103 mdegleb 24658 istrkg2ld 26246 numedglnl 26929 usgr2pth0 27546 adjbd1o 29862 nelbOLD 30232 nmo 30254 dmrab 30260 difrab2 30261 mpomptxf 30425 ccfldextdgrr 31057 isros 31427 1stmbfm 31518 bnj976 32049 bnj1143 32062 bnj1533 32124 bnj864 32194 bnj983 32223 bnj1174 32275 bnj1175 32276 bnj1280 32292 cvmlift2lem12 32561 axacprim 32933 dmscut 33272 dfrecs2 33411 andnand1 33749 bj-snglc 34284 bj-disj2r 34343 bj-dfmpoa 34413 bj-mpomptALT 34414 mptsnunlem 34622 wl-cases2-dnf 34767 wl-euae 34772 wl-dfralv 34856 itg2addnc 34961 asindmre 34992 brres2 35544 brxrn2 35642 dfxrn2 35643 inxpxrn 35658 refsymrel2 35818 refsymrel3 35819 dfeqvrel2 35840 dfeqvrel3 35841 isopos 36331 dihglblem6 38491 dihglb2 38493 fgraphopab 39830 ifpid2g 39879 ifpim23g 39881 rp-fakeanorass 39899 en2pr 39926 elmapintrab 39956 relnonrel 39967 undmrnresiss 39984 elintima 40018 relexp0eq 40066 iunrelexp0 40067 dffrege115 40344 frege131 40360 frege133 40362 ntrneikb 40464 onfrALTlem5 40896 onfrALTlem5VD 41239 ndisj2 41333 ndmaovcom 43424 eliunxp2 44402 mpomptx2 44403 alimp-no-surprise 44902 alsi-no-surprise 44917 |
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