What's wrong with this proof?
19628
What is wrong with this fake proof $e^i = 1$?
92595
A problem regarding the in-equality of complex numbers .
144396
fitch style proof problem regarding rule of inferences
57215
Stuck on formal proofs. Not sure how to continue
88188
Explain proof by contradiction.
1508
How do I prove that a definition of an ordered pair does not satisfy the required property?
1318
What is wrong with this proof that the power set of the natural numbers is countable?
41418
$2+2 = 5$? error in proof
147528
Where's the error in this $2=1$ fake proof?
20863
how do I prove this inequallity?
11959
What's wrong with this argument that $[0,1]$ is countable?
105064
What is wrong with this fake proof that $\lim\limits_{n\rightarrow \infty}\sqrt[n]{n!} = 1$?
141540
What is wrong with the following "proof" that $e=1$?
29531
A Question On Euler's Proof Of the Basel Problem
143248
What approach should I take to establish this logical proof?
29717
Not sure how to go about this group theory proof
12802
Proof of correctness of normal equation