How can you prove that: A-(A∩B)=A-B ?
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Proof explanation $A\setminus B = A \setminus B \cap A$
80876
Proof of $A\cap(B\cup C) = (A\cap B)\cup(A\cap C)$
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'Algebraic' way to prove the boolean identity $a + \overline{a}*b = a + b$
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Proving statement - $(A \setminus B) \cup (A \setminus C) = B\Leftrightarrow A=B , C\cap B=\varnothing$
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Questions about proving $\lnot \lnot a = a$
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Prove: $\gcd(a,b) = \gcd(a, b + at)$.
21726
Show that if $(b,c)=1$, then $(a,bc)=(a,b)(a,c)$.
67483
Show that $|a-b|<\epsilon \Rightarrow |a|<|b|+\epsilon$
50202
Probablity identities and $A$ given $B$
9574
How to show that $\det(AB) =\det(A) \det(B)$?
31465
Prove that if $a \mid b$ then $\gcd(a,b) = |a|$
14162
How can I prove $\sup(A+B)=\sup A+\sup B$ if $A+B=\{a+b\mid a\in A, b\in B\}$
110381
Prove that if rank(A + B) = rank(A) + rank(B), then col(A) ∩ col(B) = {0}
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Prove that $| |a|-|b| | \le |a-b|$
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Proving : $A \cap (B-C) = (A \cap B) - (A \cap C)$
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Prove that $\cos (A + B)\cos (A - B) = {\cos ^2}A - {\sin ^2}B$
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Ways to go from A to B(proof)