Hw8b - for f if g ◦ f = Id X and it is called a right inverse for f if f ◦ g = Id Y(a If there exists a right inverse for f prove that f is

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Introduction to Mathematical Reasoning Fall 2009 Assignment #8: Due Friday, 12/4/09 (NEW DUE DATE) (CORRECTED VERSION) Part II: 4. Eccles, pages 113–114, Exercises 9.3, 9.5. 5. Let f : X Y be a function. A function g : Y X is called a left inverse
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: for f if g ◦ f = Id X , and it is called a right inverse for f if f ◦ g = Id Y . (a) If there exists a right inverse for f , prove that f is surjective. (b) If there exists a left inverse for f , prove that f is injective....
View Full Document

This note was uploaded on 12/08/2009 for the course MATH 300 taught by Professor Staff during the Spring '08 term at University of Washington.

Ask a homework question - tutors are online