An istithna’i argument contains a conditional or disjunctive premise and another premise that explicitly affirms or denies a component. Example:
Conditional: If it rains, the courtyard becomes wet.
Second premise: It is raining.
Conclusion: Therefore the courtyard becomes wet.
The inference follows provided that the conditional and the second premise hold.
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The structure of an istithna’i syllogism
Types of Qiyas: Istithna’i and Iqtirani
An istithna’i argument contains a conditional or disjunctive premise and another premise that explicitly affirms or denies a component. Example:
Conditional: If it rains, the courtyard becomes wet.
Second premise: It is raining.
Conclusion: Therefore the courtyard becomes wet.
The inference follows provided that the conditional and the second premise hold.