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Glossary of Logic
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A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z


A


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accent (fallacy)

accident

ad hoc hypothesis

ad hominem

A, E, I, O

affirming the antecedent

affirming the consequent

a fortiori

ambiguity

amphiboly

analogy

analytic vs. synthetic statements

antecedent

a priori vs. a posteriori

argument

authority, appeal to

axiom


B


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barber paradox

basic statements

begging the question

bias

biconditional

bivalence


C


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categorical proposition

categorical syllogism

category error

cause and effect

causes

certainty vs. doubt

class

coherence theory of truth

complex question

composition

consequent

contingent vs. necessary truths

contradiction

contradictory vs. contrary

converse accident

copula

counterfactual


D


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de dicto / de re

deductive argument

denying the antecedent

denying the consequent

disjunction

distributed vs. undistributed

distribution

division, fallacy of


E


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E

enthymeme

equivocation

excluded middle

explanation


F


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fallacy

false cause

false dilemma

falsifiability

force, appeal to

four terms, fallacy

fuzzy logic


G


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gambler's fallacy

genetic fallacy


H


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heuristic principle

Hume's fork

hypostasization

hypothetical proposition


I


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numbers, appeal to

illicit major

illicit minor

illusion, argument from

Inductive Argument

inference rules


J


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justification


K


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kind


L


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laws of logic

liar paradox

logic


M


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modus ponens

modus tollens


N


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naturalistic fallacy

necessary and sufficient conditions

non sequitur

numbers, appeal to


P


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paradox

pathetic fallacy

post hoc ergo propter hoc

power set

predicate term

proposition


Q


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Q.E.D.

quality and quantity

quantifier

quantifier shift fallacy


R


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reductio ad absurdum

reification


S


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special pleading

square of opposition

standard form

straw man

subject term

syllogism


T


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tautology

tradition, appeal to


UM


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undistributed middle

universalizability


V


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valid vs. invalid arguments

verifiability

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