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 logic, a strict conditional (symbol: \Box, or ⥽) is a conditional governed by a modal operator, that is, a logical connective of modal logic. It is logically equivalent to the material conditional of classical logic, combined with the neces ...
, 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), 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 ...
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 conditi ...
(or conditional tense), a verb form in many languages
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Conditional sentence, 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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