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Mirrors > Home > MPE Home > Th. List > 3bitr4ri | Structured version Visualization version GIF version |
Description: A chained inference from transitive law for logical equivalence. (Contributed by NM, 2-Sep-1995.) |
Ref | Expression |
---|---|
3bitr4i.1 | ⊢ (𝜑 ↔ 𝜓) |
3bitr4i.2 | ⊢ (𝜒 ↔ 𝜑) |
3bitr4i.3 | ⊢ (𝜃 ↔ 𝜓) |
Ref | Expression |
---|---|
3bitr4ri | ⊢ (𝜃 ↔ 𝜒) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3bitr4i.2 | . 2 ⊢ (𝜒 ↔ 𝜑) | |
2 | 3bitr4i.1 | . . 3 ⊢ (𝜑 ↔ 𝜓) | |
3 | 3bitr4i.3 | . . 3 ⊢ (𝜃 ↔ 𝜓) | |
4 | 2, 3 | bitr4i 281 | . 2 ⊢ (𝜑 ↔ 𝜃) |
5 | 1, 4 | bitr2i 279 | 1 ⊢ (𝜃 ↔ 𝜒) |
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: biadan 818 pm4.78 932 xor 1012 cases2 1043 noranOLD 1528 nic-ax 1675 2sb6 2091 2sb5 2278 dfsb7 2281 2sb5rf 2485 2sb6rf 2486 eu6lem 2633 eu6 2634 2mo2 2709 2eu7 2720 2eu8 2721 euae 2722 r3al 3167 risset 3226 r2exlem 3261 ralxpxfr2d 3587 reuind 3692 undif3 4215 unab 4222 inab 4223 n0el 4275 inssdif0 4283 ssundif 4391 ralf0 4415 raldifsnb 4689 pwtp 4795 unipr 4817 uni0b 4826 iinuni 4983 reusv2lem4 5267 pwtr 5310 opthprc 5580 xpiundir 5587 xpsspw 5646 relun 5648 inopab 5665 difopab 5666 ralxpf 5681 dmiun 5746 elidinxp 5878 iresn0n0 5890 inisegn0 5928 rniun 5973 imaco 6071 rnco 6072 mptfnf 6455 fnopabg 6457 dff1o2 6595 brprcneu 6637 idref 6885 imaiun 6982 sorpss 7434 opabex3d 7648 opabex3rd 7649 opabex3 7650 ovmptss 7771 fnsuppres 7840 rankc1 9283 aceq1 9528 dfac10 9548 fin41 9855 axgroth6 10239 genpass 10420 infm3 11587 prime 12051 elixx3g 12739 elfz2 12892 elfzuzb 12896 rpnnen2lem12 15570 divalgb 15745 1nprm 16013 maxprmfct 16043 vdwmc 16304 imasleval 16806 issubm 17960 issubg3 18289 efgrelexlemb 18868 ist1-2 21952 unisngl 22132 elflim2 22569 isfcls 22614 istlm 22790 isnlm 23281 ishl2 23974 ovoliunlem1 24106 erclwwlkref 27805 erclwwlknref 27854 0wlk 27901 h1de2ctlem 29338 nonbooli 29434 5oalem7 29443 ho01i 29611 rnbra 29890 cvnbtwn3 30071 chrelat2i 30148 nelbOLD 30239 moel 30259 difrab2 30268 uniinn0 30314 disjex 30355 maprnin 30493 ordtconnlem1 31277 esum2dlem 31461 eulerpartgbij 31740 eulerpartlemr 31742 eulerpartlemn 31749 ballotlem2 31856 bnj976 32159 bnj1185 32175 bnj543 32275 bnj571 32288 bnj611 32300 bnj916 32315 bnj1000 32323 bnj1040 32354 iscvm 32619 untuni 33048 dfso3 33063 dffr5 33102 elima4 33132 brtxpsd3 33470 brbigcup 33472 fixcnv 33482 ellimits 33484 elfuns 33489 brimage 33500 brcart 33506 brimg 33511 brapply 33512 brcup 33513 brcap 33514 dfrdg4 33525 dfint3 33526 ellines 33726 elicc3 33778 bj-snsetex 34399 bj-snglc 34405 bj-projun 34430 bj-vjust 34470 wl-2xor 34900 wl-cases2-dnf 34917 poimirlem27 35084 mblfinlem2 35095 iscrngo2 35435 n0elqs 35743 inxpxrn 35803 eqvrelcoss3 36013 prtlem70 36153 prtlem100 36155 prtlem15 36171 prter2 36177 lcvnbtwn3 36324 ishlat1 36648 ishlat2 36649 hlrelat2 36699 islpln5 36831 islvol5 36875 pclclN 37187 cdleme0nex 37586 aaitgo 40106 isdomn3 40148 imaiun1 40352 relexp0eq 40402 ntrk1k3eqk13 40753 2sbc6g 41119 2sbc5g 41120 2reu7 43667 2reu8 43668 alsconv 45318 |
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