By using set identities, prove that for all sets A and B
115606
Proofs involving $ (A\setminus B) \cup (A \cap B)$
22856
Ways to go from A to B(proof)
39708
Proving $(A\le B)\vee (B\le A)$ for sets $A$ and $B$
131983
Prove that $A \subset B$ if and only if $A \setminus B = \emptyset$
23764
Proving that $A+A \not\subset 2A $ using a particular definition for sum of sets
111003
Prove that if $A\triangle B = C\triangle B$, then $A = C$
140167
Proving $A+A'B=A+B$ without truth tables
140446
Prove that $A \smallsetminus (A \smallsetminus B) = A \cap B$
109745
If $(a,k)=(b,m)=1$, prove that $(ab,km)=(a,m)(b,k)$.
113290
Prove combinatorics identity
100726
Prove that the set of powers of a set, $\{ A^n : n \in \mathbb{N} \}$ exists by using ZFC axioms (without replacement).
28391
Prove the compactness of a set B
81618
Prove $||a|-|b| | \leq |a-b|$
138199
Proof explanation $A\setminus B = A \setminus B \cap A$
90434
Prove for every two sets $A$ and $B$ that $A-B$, ${B-A}$ and $A \cap B$ are pairwise disjoint.
116527
Validating a proof for necessary and sufficient conditions on sets A & B such that $P(A) \cup P(B) = P(A\cup B)$
25553
elementary set theory (cartesian product and symmetric difference proof)