Well-Formed Formula (WFF)
A well-formed formula (WFF) is a syntactically correct expression in a formal…
Rule of Inference
A rule of inference is a logical structure that allows deriving a…
Formation Rules in Formal Languages
Formation rules define the syntax of a formal language, dictating how basic…
Derivable Rule in Logic
A derivable rule is a logical rule that can be derived from…
De Morgan’s Rules
De Morgan's rules provide two fundamental laws for transforming negated logical expressions.…
Prescriptive Grammars
Prescriptive grammars set rules for 'correct' language usage, dictating how language *should*…
Grammar
Grammar encompasses the structural rules governing the use of language. It dictates…
