Conditional (if then) may refer to:
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Causal conditional, if X then Y, where X is a cause of Y
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Conditional probability
In probability theory, conditional probability is a measure of the probability of an event occurring, given that another event (by assumption, presumption, assertion or evidence) has already occurred. This particular method relies on event B occu ...
, the probability of an event A given that another event B has occurred
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Conditional proof, in logic: a proof that asserts a conditional, and proves that the antecedent leads to the consequent
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Strict conditional, in philosophy, logic, and mathematics
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Material conditional
The material conditional (also known as material implication) is an operation commonly used in logic. When the conditional symbol \rightarrow is interpreted as material implication, a formula P \rightarrow Q is true unless P is true and Q i ...
, in propositional calculus, or logical calculus in mathematics
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Relevance conditional Relevance logic, also called relevant logic, is a kind of non-classical logic requiring the antecedent and consequent of implications to be relevantly related. They may be viewed as a family of substructural or modal logics. It is generally, but ...
, in relevance logic
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Conditional (computer programming)
In computer science, conditionals (that is, conditional statements, conditional expressions and conditional constructs,) are programming language commands for handling decisions. Specifically, conditionals perform different computations or actio ...
, a statement or expression in computer programming languages
*A conditional expression in computer programming languages such as
?:
*Conditions in a
contract
A contract is a legally enforceable agreement between two or more parties that creates, defines, and governs mutual rights and obligations between them. A contract typically involves the transfer of goods, services, money, or a promise to tr ...
Grammar and linguistics
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Conditional mood The conditional mood ( abbreviated ) is a grammatical mood used in conditional sentences to express a proposition whose validity is dependent on some condition, possibly counterfactual.
It may refer to a distinct verb form that expresses the condit ...
(or conditional tense), a verb form in many languages
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Conditional sentence
Conditional sentences are natural language sentences that express that one thing is contingent on something else, e.g. "If it rains, the picnic will be cancelled." They are so called because the impact of the main clause of the sentence is ''con ...
, a sentence type used to refer to hypothetical situations and their consequences
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Indicative conditional, a conditional sentence expressing "if A then B" in a natural language
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Counterfactual conditional
Counterfactual conditionals (also ''subjunctive'' or ''X-marked'') are conditional sentences which discuss what would have been true under different circumstances, e.g. "If Peter believed in ghosts, he would be afraid to be here." Counterfactua ...
, a conditional sentence indicating what would be the case if its antecedent were true
Other
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"Conditional" (Laura Mvula song)
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Conditional jockey, an apprentice jockey in British or Irish National Hunt racing
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Conditional short-circuit current
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Conditional Value-at-Risk
See also
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Condition (disambiguation)
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Conditional statement (disambiguation)
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