Mackey's Theorem
Let 
and 
be paired spaces with 
a family of absolutely convex bounded sets of such that the sets of generate and, if 
, there exists a 
such that 
and 
. Thenthe dual space of 
is equal to the union of the weak completions of 
, where 
and 
.
References
Iyanaga, S. and Kawada, Y. (Eds.). ``Mackey's Theorem.'' §407M in Encyclopedic Dictionary of Mathematics. Cambridge, MA: MIT Press, p. 1274, 1980.
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