# Conditional

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**Conditional** (if then) may refer to:

- [Causal conditional](/source/Causal_conditional), if X then Y, where X is a cause of Y
- [Conditional probability](/source/Conditional_probability), the probability of an event A given that another event B

- [Conditional proof](/source/Conditional_proof), in logic: a proof that asserts a conditional, and proves that the antecedent leads to the consequent

- [Material conditional](/source/Material_conditional), in propositional calculus, or logical calculus in mathematics
- [Relevance conditional](/source/Relevance_conditional), in relevance logic
- [Conditional logic](/source/Conditional_logic), referring to logics for studying natural-language conditional sentences (cf. [§ Grammar and linguistics](#Grammar_and_linguistics) below)
- [Conditional (computer programming)](/source/Conditional_(computer_programming)), a statement or expression in computer programming languages
- A conditional expression in computer programming languages such as [?:](/source/%3F:)
- Conditions in a [contract](/source/Contract)

## Grammar and linguistics

- [Conditional mood](/source/Conditional_mood) (or conditional tense), a verb form in many languages
- [Conditional sentence](/source/Conditional_sentence), a sentence type used to refer to hypothetical situations and their consequences - [Indicative conditional](/source/Indicative_conditional), a conditional sentence expressing "if A then B" in a natural language - [Counterfactual conditional](/source/Counterfactual_conditional), a conditional sentence indicating what would be the case if its antecedent were true

## Other

- ["Conditional" (Laura Mvula song)](/source/Conditional_(Laura_Mvula_song))
- [Conditional jockey](/source/Conditional_jockey), an apprentice jockey in British or Irish National Hunt racing
- [Conditional short-circuit current](/source/Conditional_short-circuit_current)
- [Conditional Value-at-Risk](/source/Conditional_Value-at-Risk)

## See also

- [Condition (disambiguation)](/source/Condition_(disambiguation))
- [Conditional statement (disambiguation)](/source/Conditional_statement_(disambiguation))

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Adapted from the Wikipedia article [Conditional](https://en.wikipedia.org/wiki/Conditional) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Conditional?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.