Prove the following equivalencies by writing an equivalence proof (i.e., start on one side and use known equivalencies to get to the other side). Label each step of your proof to explain the equivalency.
SOLUTION -
(A)
We need to show thatby using other equivalences.
The given statement is
We take left part of the above statement
Using, we get
On applying law of negation, we get
On applying distributive property, we get
This can be written as
.
Hence, we proved
(B)
We need to show thatby using other equivalences.
The given statement is .
We take left part of the above statement
Using, we get
This can be written as
Using, we get
Hence, we proved
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