What does $f|_A$ mean?
44285
What does this notation mean? F|U
14830
A transformation of F[x]
92390
The meaning of notation $\subset\subset$ in complex analysis
129334
Where does $\in$ come from and where is it defined?
40604
Is this proof correct for : Does $F(A)\cap F(B)\subseteq F(A\cap B) $ for all functions $F$?
155579
Show that $End_A(A)$ = {$r_a$ | $a ∈ A$}
53236
Formal proof of $\lim_{x\to a}f(x) = \lim_{h\to 0} f(a+h)$
61220
What does "$\mathbb{F^n}$ is a vector space over $\mathbb{F}$" mean?
62172
Why does $-b < a < b \iff |a| < b$?
120235
Clarification of the notation $f: \mathbb{R} \setminus\{3\} \to\mathbb{R}\setminus\{2\}$
150554
proof that $f'$ is continuous at $a$
118216
What does $A\iff B$ mean with respect to "sufficiency" and "necessity"?
99281
Explain the ' notation in F#
53101
Is it true that the relation |A| < |B| is a sufficient condition for claiming that $f$ is a bijection?
155152
What does [&] mean before function?
22989
A doubt on the definition of limit of a function definition
33030
Proof that $\inf A = -\sup(-A)$