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Mirrors > Home > ILE Home > Th. List > elpri | Unicode version |
Description: If a class is an element of a pair, then it is one of the two paired elements. (Contributed by Scott Fenton, 1-Apr-2011.) |
Ref | Expression |
---|---|
elpri |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elprg 3547 | . 2 | |
2 | 1 | ibi 175 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wo 697 wceq 1331 wcel 1480 cpr 3528 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-v 2688 df-un 3075 df-sn 3533 df-pr 3534 |
This theorem is referenced by: nelpri 3551 nelprd 3553 opth1 4158 0nelop 4170 ontr2exmid 4440 onintexmid 4487 reg3exmidlemwe 4493 funtpg 5174 ftpg 5604 acexmidlemcase 5769 2oconcl 6336 en2eqpr 6801 eldju1st 6956 finomni 7012 exmidomniim 7013 ismkvnex 7029 exmidonfinlem 7049 exmidfodomrlemr 7058 exmidfodomrlemrALT 7059 exmidaclem 7064 sup3exmid 8715 m1expcl2 10315 maxleim 10977 maxleast 10985 zmaxcl 10996 minmax 11001 xrmaxleim 11013 xrmaxaddlem 11029 xrminmax 11034 unct 11954 qtopbas 12691 limcimolemlt 12802 recnprss 12825 coseq0negpitopi 12917 el2oss1o 13188 nninfalllem1 13203 nninfall 13204 nninfsellemqall 13211 nninfomnilem 13214 isomninnlem 13225 trilpolemclim 13229 trilpolemcl 13230 trilpolemisumle 13231 trilpolemeq1 13233 trilpolemlt1 13234 |
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