New posts in Supremum And Infimum

Infimum taken over $\lambda$ in $\mathbb{C}$

How can I show a supremum of a set is also its limit point?

Proving rigorously the supremum of a set

Prove that the sum of the infima is smaller than the infimum of the sum

Rudin Theorem $1.11$

max and min versus sup and inf

Sequence converging to the supremum

How can I prove $\sup(A+B)=\sup A+\sup B$ if $A+B=\{a+b\mid a\in A, b\in B\}$