MATH 4389 Study Guide - Final Guide: Divisor, Abstract Algebra, Surjective Function

• School: University of Houston
• Department: Mathematics
• Course: MATH 4389
• Professor: Almus

Document Summary

These notes are intended to be a compact summary of an undergraduate. Topics that you should recall: mathematical induction set theory number theory (primes, greatest common divisor, division algorithm) the set of natural numbers is a well-ordered set. By 3: the sum of all digits is a multiple of 3. By 4: the last two digits form a number that"s a multiple of 4. By 5: the units digit is 0 or 5. By 8: last 3 digits form a number divisible by 8. By 9: the sum of the digits is a multiple of 9. Prime numbers: 2,3,5,7,11,13, x and y f x. B and s y y b f s. For your reference, here are some definitions you may find helpful: Def: if is called the image of s under f, and the set is called the inverse image of t. B . x x a f x and. 0,1,5,9 and is even is odd x f.