WhoCites Definitions DiscreteMath Sections DiscrMathExt Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(there is a unique x in A such that P(x))

Who Cites exists unique?
exists_uniqueDef  !x:AP(x) == x:A. x is the x:AP(x)
Thm*  A:Type, P:(AProp). (!x:AP(x))  Prop
is_theDef  x is the u:AP(u) == P(x) & (u:AP(u u = x)
Thm*  A:Type, P:(AProp), x:A. (x is the x:AP(x))  Prop

Syntax:!x:AP(x) has structure: exists_unique(Ax.P(x))

About:
functionuniverseequalmemberpropimplies
andallexists!abstraction
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html

WhoCites Definitions DiscreteMath Sections DiscrMathExt Doc