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55m
answered Show that at some time the hour hand of the first clock points to the tip of the hour hand of the second clock
7h
answered Determinant map is homomorphism and surjective.
1d
answered What is a nice, clean proof to show that a fair coin toss satisfies axioms of probability?
1d
answered What is a surjective function?
1d
answered Non computable numbers are normals?
1d
answered A question about angles in the Euclidean plane
2d
answered Show that if $f$ is analytic on a domain $D$, and if $|f|$ is constant, then $f$ is constant.
2d
answered How to calculate $\frac1n$ sequence?
2d
answered What does it REALLY mean for a metric space to be compact?
2d
answered $\mathbb{Z}_6/\mathbb{Z}_2$ isomorphic to $\mathbb{Z}_3$?
2d
answered Guaranteed Profit on a Roulette wheel: Does $N$ exist?
2d
answered Determining the intersection of kernel and image.
Sep
1
answered “Either A and B is open, then A + B is open” (typo sense-making, Stein Shakarchi Real Analysis)
Sep
1
answered If the decimal expansion of $a/b$ contains “$7143$” then $b>1250$
Sep
1
answered Is the language $L$ generated by 'Fibonacci Strings' (as given in the desciption) regular? If not, disprove by Pumping Lemma
Sep
1
answered What does a left-continuous version of a function mean?
Sep
1
answered Number of committees of size 5 with at least 2 women from a society with 10 men and 12 women
Sep
1
answered Product of countably many 1-dimensional spaces does not have cardinality $\aleph_0$
Aug
31
answered Probability of single digits from coin tosses
Aug
31
answered Logic formula translation