Prove or disprove C∖(A∪B)=(C∖A)∩(C∖B)
113083
How to prove a set equality?
10107
Prove $A\cup (A\cap B) = A$
133699
Proving that there is a bijection between $A$ and $B$.
93410
How to prove ~ (~P & ~Q) : P ∨ Q by natural deduction
141496
Could someone make the proof into a hinted exercise?
137707
How to prove that $(A\cup B) \cap C \subseteq A\cup (B\cap C)$
106564
Suppose $A,B,C$ are sets. Prove that $A\mathbin\triangle B\subseteq C \iff A\cup C=B\cup C$.
105233
Is there a counterexample for the claim: if $A \oplus B\cong A\oplus C$ then $B\cong C$?
144360
For any sets $A$ and $B$, show that $(B\smallsetminus A)\cup A=B \iff A\subseteq B$.
95935
Prove A = $(A \cap B) \cup (A \cap B^c)$ using the distributive and associative law.
45481
Prove or disprove validity: $(\forall x \exists y (P(x) \supset Q(y))) \supset(\exists y \forall x (P (x) \supset Q(y)))$
114277
Proving in Discrete Structures Problem that $2^N = \binom{N}{0} + \binom{N}{1} + \binom{N}{2} + \dots + \binom{N}{N}$
87830
Relating the union of the power set of a set to the set itself
59831
How to relate combinatorial proof to bipartite graphs?
148234
Express set $[a,b] \cup [c,d]$ as the difference of two intervals
13136
Element chasing proof that $(A\setminus C)\setminus(B\setminus C) = (A\setminus B)\setminus C$
46240
Show that if $A$ and $B$ are sets, then $(A\cap B) \cup (A\cap \overline{B})=A$.