Prove that a nonempty subset U of a vector space Vover a field F is a subspace of V if, for every u and u' in U and everya in F, u + u' ∈ U and au ∈U. (In words, a nonempty set U isa subspace of V if it is closed under the two operations of V.)
Prove that a nonempty subset U of a vector space Vover a field F is a subspace of V if, for every u and u' in U and everya in F, u + u' ∈ U and au ∈U. (In words, a nonempty set U isa subspace of V if it is closed under the two operations of V.)
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.1: Vector Spaces And Subspaces
Problem 44EQ
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Prove that a nonempty subset U of a
over a field F is a subspace of V if, for every u and u' in U and every
a in F, u + u' ∈ U and au ∈U. (In words, a nonempty set U is
a subspace of V if it is closed under the two operations of V.)
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