A First Course in Linear Algebra · Problem SSLE.T10
Systems of Linear Equations — Robert Beezer
Mathematics — Linear Algebra · proof-techniques
Problem
Proof Technique D asks you to formulate a definition of what it means for a whole number to be odd. What is your definition? (Do not say ``the opposite of even.'') Is 6 odd? Is 11 odd? Justify your answers by using your definition.