Mathematics
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user122661
  • Member for 9 years, 8 months
  • Last seen more than 3 years ago
  • San Antonia, Texas
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2nd year pure math major at the University of San Antonio.

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All Questions Answers
Score Newest
question
15
Determine the number of equivalence relations on the set {1, 2, 3, 4}
Mar 7, 2014
question
9
What is the inclusion-exclusion principle for 4 sets?
Feb 24, 2014
question
6
Assuming that A and B are non-empty, if there is an injective function F : A -> B then there must exist a surjective function g : B -> A
May 3, 2014
question
4
Prove that $\log_2 3$ is irrational [closed]
Jan 29, 2014
question
3
Let $x$ be greater than $1$. Prove $x$ is prime if and only if for every integer $y$, either $\gcd(x,y)=1$ or $x\mid y$.
Jan 20, 2014
question
3
Prove a square can't be written $5x+ 3$, for all integers $x$.
Jan 30, 2014
question
3
Solve $85x \equiv 34 \pmod{153}$
May 8, 2014
question
3
Let $a$ and $b$ be non-zero integers, and $c$ be an integer. Let $d = \gcd(a, b)$. Prove that if $a|c$ and $b|c$ then $ab|cd$.
May 7, 2014
question
3
$74x \equiv 1 \bmod 53$
Feb 8, 2014
question
3
Let $S$ and $T$ be finite non-empty sets such that $|S| = |T|$. Show that the function $f : S\to T$ is onto if and only if it is one-to-one.
Mar 14, 2014

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