What's going on with this 5-line proof of Fermat's Last Theorem?
56325
If we accept a false statement, can we prove anything?
49938
Proof of $a^{\phi (n) +1} \equiv a \pmod{\! n} $ Carmichael generalization of Fermat-Euler's theorem.
39276
Ground Plan - Prove Fermat-Euclid's Totient Theorem with Lagrange's Theorem
26614
Fermat: Last two digits of $7^{355}$
147952
Why can we prove mathematically that a formula to solve an (n+5) order polynomial does not exist?
90537
Converse of Fermat's Little Theorem.
32136
How to prove Lucas's Converse of Fermat's Little Theorem without using primitive root?
138741
Fermat numbers question
20574
Understanding the proof for $\gcd (F_n, F_{n+k}) = 1$ where $F_n$ is a Fermat number
83776
Is there a direct proof of this lcm identity?
16172
My proof of $I \otimes N \cong IN$ is clearly wrong, but where have I gone wrong?
4140
Fermat's Last Theorem with negative exponent
93549
Wilson and Fermat's Theorem
58188
What's the proof that the Euler totient function is multiplicative?
130027
Give a direct proof of the fact that $a^2-5a+6$ is even for any $a \in \mathbb Z$
122083
Prove that $\sqrt[3]{2} +\sqrt{5}$ is algebraic over $\mathbb Q$
80748
Question regarding the Fibonacci sequence