Putnam Exam question
98921
Does $y(y+1) \leq (x+1)^2$ imply $y(y-1) \leq x^2$?
22029
Solving modular arithmetic questions
73287
Project Euler Question 14 (Collatz Problem)
42590
Understanding implication in logic truth tables (excerpt from textbook)
33853
Why is not the answer to all probability questions 1/2.
42191
Linear Programming 3 decision variables (past exam paper question)
89795
Which answer should I accept?
113085
How do I complete K&R Exercise 2-4?
100399
A doubt with a part of a certain proof.
7919
The pigeonhole principle - how to solve questions like that?
102413
Gardner riddle on mathemagicians
154700
Stuck in logic exercise
57724
How to prove boolean ordering question
54674
combinations groups question
27141
Combinatorics identity question
157228
Could someone help me check my answer on this probability question?
38851
To find the probability whether $X$ is rational