Sep 28, 2023 · It is common to represent propositional constants by A, B, and C, propositional variables by P, Q, and R, and schematic letters are often Greek letters, most often φ, ψ, and χ. I understand …

Jul 7, 2024 · In propositional logic there are no propositional functions because there are no predicates and variables in the syntax. See Mendelson's example: the two mathematical statements "x is prime" …

Aug 7, 2022 · 1 Firstly, calling a propositional variable a proposition is prone to induce complications, at least, conceptually, if not operationally, for there is a clear difference between stating that (a variable) …

Propositional logic (also called sentential logic) is logic that includes sentence letters (A,B,C) and logical connectives, but not quantifiers. The semantics of propositional logic uses truth assignments to the …

Oct 28, 2020 · The suggestions given are fine, but there is not always a direct read over from natural language to formal logic: when could mean "whenever" but there could, in natural language, be an …

Oct 18, 2018 · In both propositional and predicate logic, the truth value of a formula is always either true or false, once an interpretation has been given. The set $\ {true, false\}$ is not something you …

May 28, 2016 · Is my translation of unless into propositional logic correct? Ask Question Asked 9 years, 8 months ago Modified 7 years, 8 months ago

It's possible that considering propositional logic is making this too simplified, and that, at the cost of some additional complexity, the distinctions would be clearer in predicate logic. For example, you …

Proof of the Compactness Theorem for Propositional Logic Ask Question Asked 13 years, 1 month ago Modified 10 years, 11 months ago

Apr 26, 2017 · Propositional Logic Proof using I.P. or C.P or rules of inference Ask Question Asked 11 years, 9 months ago Modified 7 months ago