logic
Noun

The branch of philosophy that analyzes inference (synset 106173467)
domain member category:
 consistency  (logic) an attribute of a logical system that is so constituted that none of the propositions deducible from the axioms contradict one another
 completeness  (logic) an attribute of a logical system that is so constituted that a contradiction arises if any proposition is introduced that cannot be derived from the axioms of the system
 corollary  (logic) an inference that follows directly from the proof of another proposition
 non sequitur  (logic) a conclusion that does not follow from the premises
 arity  the number of arguments that a function can take
 logical quantifier, quantifier  (logic) a word (such as `some' or `all' or `no') that binds the variables in a logical proposition
 subject  (logic) the first term of a proposition
 predicate  (logic) what is predicated of the subject of a proposition; the second term in a proposition is predicated of the first term by means of the copula
 proof  a formal series of statements showing that if one thing is true something else necessarily follows from it
 paradox  (logic) a statement that contradicts itself
 postulation, predication  (logic) a declaration of something selfevident; something that can be assumed as the basis for argument
 explanandum, explicandum  (logic) a statement of something (a fact or thing or expression) to be explained
 explanans  (logic) statements that explain the explicandum; the explanatory premises
 proposition  (logic) a statement that affirms or denies something and is either true or false
 particular, particular proposition  (logic) a proposition that asserts something about some (but not all) members of a class
 universal, universal proposition  (logic) a proposition that asserts something of all members of a class
 negation  (logic) a proposition that is true if and only if another proposition is false
 posit, postulate  (logic) a proposition that is accepted as true in order to provide a basis for logical reasoning
 axiom  (logic) a proposition that is not susceptible of proof or disproof; its truth is assumed to be selfevident
 tautology  (logic) a statement that is necessarily true
 contradiction, contradiction in terms  (logic) a statement that is necessarily false
 logic operation, logical operation  an operation that follows the rules of symbolic logic
 logical relation  a relation between propositions
 transitivity  (logic and mathematics) a relation between three elements such that if it holds between the first and second and it also holds between the second and third it must necessarily hold between the first and third
 reflexiveness, reflexivity  (logic and mathematics) a relation such that it holds between an element and itself
 quantify  use as a quantifier
 presuppose, suppose  require as a necessary antecedent or precondition
 analytic, analytical  of a proposition that is necessarily true independent of fact or experience
 synthetic, synthetical  of a proposition whose truth value is determined by observation or facts
 extensional  defining a word by listing the class of entities to which the word correctly applies
 intensional  used of the set of attributes that distinguish the referents of a given word
 inductive  of reasoning; proceeding from particular facts to a general conclusion
 inferential  of reasoning; proceeding from general premisses to a necessary and specific conclusion
 nonmonotonic  not monotonic
 interchangeable  (mathematics, logic) such that the arguments or roles can be interchanged
 noninterchangeable  such that the terms of an expression cannot be interchanged without changing the meaning
 apodeictic, apodictic  of a proposition; necessarily true or logically certain
 categorematic  of a term or phrase capable of standing as the subject or (especially) the predicate of a proposition
 syncategorematic  of a term that cannot stand as the subject or (especially) the predicate of a proposition but must be used in conjunction with other terms
 scopal  of or relating to scope
hypernym: philosophy  the rational investigation of questions about existence and knowledge and ethicshyponym: modal logic  the logical study of necessity and possibility 
Reasoned and reasonable judgment (synset 105622811)
"it made a certain kind of logic"hypernym: common sense, good sense, gumption, horse sense, mother wit, sense  sound practical judgment

The principles that guide reasoning within a given field or situation (synset 105880240)
"economic logic requires it"; "by the logic of war"hypernym: principle  a basic truth or law or assumption

The system of operations performed by a computer that underlies the machine's representation of logical operations (synset 106142469)
domain category: computer science, computing  the branch of engineering science that studies (with the aid of computers) computable processes and structureshypernym: system, system of rules  a complex of methods or rules governing behavior

A system of reasoning (synset 105671913)
domain member category:
 extrapolate  gain knowledge of (an area not known or experienced) by extrapolating
 induce  reason or establish by induction
 deduce, deduct, derive, infer  reason by deduction; establish by deduction
 contradict, negate  prove negative; show to be false
 elicit  derive by reason
hypernym: system, system of rules  a complex of methods or rules governing behaviorhyponym: aristotelian logic  the syllogistic logic of Aristotle as developed by Boethius in the Middle Ages
 formal logic, mathematical logic, symbolic logic  any logical system that abstracts the form of statements away from their content in order to establish abstract criteria of consistency and validity
synonym: logical system, system of logic
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