Atomic formula & Propositional variable - Unionpedia, the concept map

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Difference between Atomic formula and Propositional variable

Atomic formula vs. Propositional variable

In mathematical logic, an atomic formula (also known as an atom or a prime formula) is a formula with no deeper propositional structure, that is, a formula that contains no logical connectives or equivalently a formula that has no strict subformulas. In mathematical logic, a propositional variable (also called a sentence letter, sentential variable, or sentential letter) is an input variable (that can either be true or false) of a truth function.

Domain of discourse

In the formal sciences, the domain of discourse, also called the universe of discourse, universal set, or simply universe, is the set of entities over which certain variables of interest in some formal treatment may range.

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First-order logic

First-order logic—also called predicate logic, predicate calculus, quantificational logic—is a collection of formal systems used in mathematics, philosophy, linguistics, and computer science.

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Logical connective

In logic, a logical connective (also called a logical operator, sentential connective, or sentential operator) is a logical constant.

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Mathematical logic

Mathematical logic is the study of formal logic within mathematics.

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Propositional calculus

The propositional calculus is a branch of logic.

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Quantifier (logic)

In logic, a quantifier is an operator that specifies how many individuals in the domain of discourse satisfy an open formula.

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