New posts in Semicontinuous Functions

Weak lower semicontinuity of functional with two arguments

Continuous function between a lower semi-continuous function and an upper semi-continuous function.

Upper semicontinuity on a normal space

Show the iff statement of lower semicontinuous

Any lower semicontinuous function $f: X \to \mathbb{R}$ on a compact set $K \subseteq X$ attains a min on $K$.