Temporal Modal Logic
Temporal modal logic extends modal logic with time-related modalities like 'always' and…
Syntactic Consequence in Formal Systems
Syntactic consequence defines the relationship between premises and conclusions derived through logical…
Strong Completeness in Logic
Strong completeness in logic means that if a formula is true in…
Simple Type Theory
Simple type theory organizes objects into a hierarchy of types, classes, and…
Sheffer Stroke: The All-Powerful Logical Operation
The Sheffer stroke, also known as NAND, is a fundamental logical operation.…
Sequent Calculus: A Formal System for Logical Deduction
Sequent calculus is a formal system for logical entailments, representing deductions as…
Semi-Decidable Theory
A semi-decidable theory allows for an algorithm to list all its theorems.…
Semantic Consequence
Semantic consequence describes the logical relationship between premises and a conclusion in…
Satisfiability (SAT)
Satisfiability determines if a logical formula can be true under any interpretation.…
Proof-Theoretic Consequence
Proof-theoretic consequence, also known as syntactic consequence, explores logical entailment based on…
