What is the difference between c=a,b and c=(a,b)?
471
What does the comma operator , do?
17532
Why does Simplify[b-a] give -a+b and not b-a?
43310
Proving $A\cap(B-C)$ is equal to $(A\cap B)-(A\cap C)$
11600
$\gcd(a,\operatorname{lcm}(b,c))=\operatorname{lcm}(\gcd(a,b),\gcd(a,c))$
109318
Equivalence relation $(a,b) R (c,d) \Leftrightarrow a + d = b + c$
133448
What is the value of $a/b/c$?
51321
Prove that $A = B = C = D$
107914
Expanding GCDs Reasoning: $\gcd(a,c) \cdot \gcd(b,c) = \gcd(ab,bc,ac,cc)$
39485
Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b')
5149
Show $\binom{a}{b}\binom{b}{c}=\binom{a}{a-c}\binom{a-c}{a-b}$
111003
Prove that if $A\triangle B = C\triangle B$, then $A = C$
2289
Prove that if $\gcd( a, b ) = 1$ then $\gcd( ac, b ) = \gcd( c, b ) $
76680
Prove that if $\gcd(a,c)=1$ and $\gcd(b,c)=1$ then $\gcd(ab,c)=1$
67717
$A \oplus B = A \oplus C$ imply $B = C$?
79
Find $a$, $b$ and $c$ that satisfy the following equations
130513
LCM is associative: $\ \text{lcm}(\text{lcm}(a,b),c)=\text{lcm}(a,\text{lcm}(b,c))$
28330
Finding x in $a^{x} \bmod  b = c$ when values a,b, and c are known?