Show that $A \setminus (B \setminus C)$ is equivalent to $(A \setminus B) \cup (A \cap C)$?
52135
Show that $A \setminus ( B \setminus C ) \equiv ( A \setminus B) \cup ( A \cap C )$
76188
Show $(W_1 + W_2 )^\perp = W_1^\perp \cap W_2^\perp$ and $W_1^\perp + W_2^\perp ⊆ (W_1 \cap W_2 )^\perp$
39455
Prove that $(X\times Y)\setminus (A\times B)$ is connected
26766
Proving : $A \cap (B-C) = (A \cap B) - (A \cap C)$
138199
Proof explanation $A\setminus B = A \setminus B \cap A$
103441
Proving $(A\cup B)\cap(B\cup C)\cap(C\cup A)=(A\cap B)\cup (A\cap C)\cup (B\cap C)$?
64656
how do you prove that $A\times (B\setminus C) = (A\times B) \setminus (A\times C)$?
98816
How to prove that $\{f+g<a\}=\bigcup_{r\in{\Bbb Q}}(\{f<r\}\cap\{g<a-r\})$?
50655
Proof of $f^{-1}(B_{1}\setminus B_{2}) = f^{-1}(B_{1})\setminus f^{-1}(B_{2})$
151928
How to prove that $N\setminus A$ is finite?
87265
If $(A-\lambda{I})$ is $\lambda$-equivalent to $(B-\lambda{I})$ then $A$ is similar to $B$
10909
$|A \cup B| = \mathfrak{c}$, then $A$ or $B$ has cardinality $\mathfrak{c}$.
140440
Proving $(A\times C)\cup(B\times D)\subseteq(A\cup B)\times(C\cup D)$
15441
Show $\frac{1}{4}\leq \mu(A\cap B \cap C)$
80684
Counter example for $(A \times B) \cap (C \times D) = (A \cap C ) \times (B \cap D)$
123890
Show $A\setminus (A\cap B)=(A\cup B)\setminus B$
27899
Can we prove the existence of $A\cup B$ without the union axiom?