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May
23
asked Can a function be differentiable at the end points of its (closed interval) domain?
May
23
asked Can a function be continuous at the end points of its (closed interval) domain?
Oct
8
asked If all vectors in a set are perpendicular to a given vector, is the set linearly dependent?
Nov
15
asked Functions over $R$ such that $f(xy) = f(x)f(y)$
Aug
3
asked Interesting properties of ternary relations?
Jul
29
asked Characterising functions $f$ that can be written as $f = g \circ g$?
Jul
28
answered Optimal Strategy for Deal or No Deal
Jul
28
asked Why is the “finitely many” quantifier not definable in First Order Logic?
Jul
24
asked Why is the derivative of a circle's area its perimeter (and similarly for spheres)?
Jul
24
asked Why is the volume of a cone one third of the volume of a cylinder?
Jul
23
answered Explanation of method for showing that 0 / 0 is undefined
Jul
22
answered What is the meaning of the double turnstile symbol ($\models$)?
Jul
22
answered In how many different ways can I sort balls of two different colors
Jul
22
asked Are there any interesting semigroups that aren't monoids?
Jul
22
answered Why isn't reflexivity redundant in the definition of equivalence relation?
Jul
21
asked Is $0$ a natural number?
Jul
21
asked Why does the series $\sum_{n=1}^\infty\frac1n$ not converge?
Jul
21
asked How do you determine if a point sits inside a polygon?
Jul
20
asked Why is $x^0 = 1$ except when $x = 0$?
Jul
20
answered How do the Properties of Relations work?