Book reference for proof.
62000
$G$ is characteristically simple $\iff$ there is simple $T$ such that $G \cong T\times T \times \cdots \times T$
90970
How to prove the line exist?
79810
Resources/Books for Discrete Mathematics
148790
Basic question about proofs with the goal $\exists x P(x)$
145466
Is this a valid mathematical proof?
131873
Getting better at proofs
5631
Wilson's Theorem textbook proof question
76635
Proof through combinatorial argument
13466
Prove that if a|b and b|c then a|c using a column proof that has steps in the first column and the reason for the step in the second column.
138897
help with some Hilbert style proofs in a propositional logic axiom system.
50178
\qed for theorems without proofs
116990
Number theory book recommendation.
11841
Introduction to proofs with a fair amount of hand-holding?
40048
Finding the fallacy in this broken proof
25553
elementary set theory (cartesian product and symmetric difference proof)
141814
Proofs using theorems instead of axioms
22193
Why, logically, is proof by contradiction valid?