Nuprl Definition : vr_equi-pred
X ~~ Y ==  
x:T. (X x 

 Y x)
Definitions occuring in Statement : 
all:
x:A. B[x], 
iff: P 

 Q, 
apply: f a
FDL editor aliases : 
vr_equi-pred
X  \msim{}\msim{}  Y  ==    \mforall{}x:T.  (X  x  \mLeftarrow{}{}\mRightarrow{}  Y  x)
Date html generated:
2012_02_20-PM-03_33_35
Last ObjectModification:
2012_02_02-PM-01_55_23
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