# Concept derivation guides

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

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Concept guide



## [Prove a basis before reading dimension](/en/derivations/derivation-mko-vector-space-dimension-01/?from=%2Fen%2Fderivations%2F%3Fq%3Dmko-vector-space-dimension)

B=((1,1),(1,-1)) is an ordered basis of R2, so dim R2=2.

Dimension of a finite-dimensional vector space

derivation-mko-vector-space-dimension-01





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