# Concept derivation guides

299 concept teaching guides, separate from the 36,000 individual question derivations.

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Concept guide



## [Finite maxima and unattained interval suprema](/en/derivations/derivation-mko-supremum-and-infimum-01/?from=%2Fen%2Fderivations%2F%3Fq%3Dmko-supremum-and-infimum)

Find sup/inf of A={-2,1/3,5/2} and B=(0,1), checking bounds and extremality.

Supremum and infimum

derivation-mko-supremum-and-infimum-01





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