Does anyone know any links to property proofs on functions and inverse images?
K katlego New Member Feb 14, 2012 #1 Feb 14, 2012 #1 Does anyone know any links to property proofs on functions and inverse images?
K katlego New Member Feb 15, 2012 #3 Feb 15, 2012 #3 I am busy studying property proofs for direct and inverse images. I got stuck with the proof for property f(AUB) = f(A)Uf(B). Do you know any links to tutorials on functions and inverse images (property proofs)?
I am busy studying property proofs for direct and inverse images. I got stuck with the proof for property f(AUB) = f(A)Uf(B). Do you know any links to tutorials on functions and inverse images (property proofs)?
K katlego New Member Feb 15, 2012 #4 Feb 15, 2012 #4 I have attached my attempt on the property f(AUB) = f(A)Uf(B). Please evaluate it if you can. I am more concerned with the logic.
I have attached my attempt on the property f(AUB) = f(A)Uf(B). Please evaluate it if you can. I am more concerned with the logic.
K katlego New Member Mar 1, 2012 #5 Mar 1, 2012 #5 I have attached a proof that is more mathematically sound.
