Predicate logic formulas without quantifiers can be verified using derivation. But when it comes to first order logic (predicate logic with quantifiers), the simplest way is to apply logical reasoning. […]

What is the no. of distinct binary trees possible with n labeled nodes? Solution $ \frac{(2n)!} { (n+1)!}$ (Proof to be Added) What is the no. of distinct binary trees […]

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