In
philosophy
Philosophy (from , ) is the systematized study of general and fundamental questions, such as those about existence, reason, knowledge, values, mind, and language. Such questions are often posed as problems to be studied or resolved. Some ...
, correlative-based fallacies are
informal fallacies based on
correlative conjunction
In grammar, a conjunction (abbreviated or ) is a part of speech that connects words, phrases, or clauses that are called the conjuncts of the conjunctions. That definition may overlap with that of other parts of speech and so what constitutes a ...
s.
Correlative conjunctions
A correlative conjunction is a relationship between two statements where one must be false and the other true. In formal logic this is known as the
exclusive or relationship; traditionally, terms between which this relationship exists have been called ''contradictories''.
Examples
In the following example, statement ''b'' explicitly negates statement ''a'':
Statements can also be
mutually exclusive, without explicitly negating each other as in the following example:
Fallacies
Fallacies based on correlatives include:
;
False dilemma
A false dilemma, also referred to as false dichotomy or false binary, is an informal fallacy based on a premise that erroneously limits what options are available. The source of the fallacy lies not in an invalid form of inference but in a false ...
or ''false correlative''.
:Here something which is not a correlative is treated as a correlative, excluding some other possibility.
;
Denying the correlative
:where an attempt is made to introduce another option into a true correlative.
;
Suppressed correlative
The fallacy of suppressed correlative is a type of argument that tries to redefine a correlative (one of two mutually exclusive options) so that one alternative encompasses the other, i.e. making one alternative impossible. This has also been know ...
:where the definitions of a correlative are changed so that one of the options includes the other, making one option impossible.
See also
*
Logical conjunction
*
Logical disjunction
{{Fallacies
Informal fallacies