intuitionistic system
81Many-valued logic — In logic, a many valued logic (also multi or multiple valued logic) is a propositional calculus in which there are more than two truth values. Traditionally, in Aristotle s logical calculus, there were only two possible values (i.e., true and… …
82Boolean satisfiability problem — For the concept in mathematical logic, see Satisfiability. 3SAT redirects here. For the Central European television network, see 3sat. In computer science, satisfiability (often written in all capitals or abbreviated SAT) is the problem of… …
83Model theory — This article is about the mathematical discipline. For the informal notion in other parts of mathematics and science, see Mathematical model. In mathematics, model theory is the study of (classes of) mathematical structures (e.g. groups, fields,… …
84Occam's razor — For the aerial theatre company, see Ockham s Razor Theatre Company. It is possible to describe the other planets in the solar system as revolving around the Earth, but that explanation is unnecessarily complex compared to the modern consensus… …
85Fact — For other uses, see Fact (disambiguation). A fact (derived from the Latin Factum, see below) is something that has really occurred or is actually the case. The usual test for a statement of fact is verifiability, that is whether it can be shown… …
86Nyaya — Part of a series on Hindu philosophy …
87Critical thinking — is the process or method of thinking that questions assumptions. It is a way of deciding whether a claim is true, false, or sometimes true and sometimes false, or partly true and partly false. The origins of critical thinking can be traced in… …
88Calculus of constructions — The calculus of constructions (CoC) is a higher order typed lambda calculus, initially developed by Thierry Coquand, where types are first class values. It is thus possible, within the CoC, to define functions from, say, integers to types, types… …
89Cut-elimination theorem — The cut elimination theorem (or Gentzen s Hauptsatz) is the central result establishing the significance of the sequent calculus. It was originally proved by Gerhard Gentzen 1934 in his landmark paper Investigations in Logical Deduction for the… …
90Platonism — Part of a series on …
