Talk:Set function
From Encyclopedia of Mathematics
About the extended real line $[-\infty,+\infty]$: but what about $(-\infty)+(+\infty)$?
About hereditary σ-ring: also called σ-ideal.
About topological groups: I guess, only commutative groups appear in this context; really?
Boris Tsirelson (talk) 16:12, 19 September 2012 (CEST)
How to Cite This Entry:
Set function. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Set_function&oldid=28047
Set function. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Set_function&oldid=28047