What is wrong with the proof
37466
Questions on "All Horse are the Same Color" Proof by Complete Induction
76506
What is the flaw of this proof (largest integer)?
68880
propositional calculus problem, how to prove this right or wrong?
90540
What is wrong in this proof: That $\mathbb{R}$ has measure zero
2251
Can someone give me a hint on how to prove this?
35751
Is There a Problem with This Professor's Proof Concerning Interior and Boundary Points?
4769
Any reasons why the basis case can't be at the end of a mathematical induction proof?
141540
What is wrong with the following "proof" that $e=1$?
109685
An invalid argument, the conclusion of which is a tautology
64075
Prove that a set of connectives is inadequate
118577
Fallacious proof involving trigonometry
135337
What does "rigorous proof" mean?
19326
What makes induction a valid proof technique?
113344
How do we prove that something is unprovable?
116524
A bad Cayley–Hamilton theorem proof
1508
How do I prove that a definition of an ordered pair does not satisfy the required property?
108923
What is wrong with this false proof? $-1=(-1)^1=(-1)^\frac{2}{2}=((-1)^2)^\frac{1}{2}=\sqrt{(-1)^2}=\sqrt{1}=1$