كلما كان ب ج، فكل ج د
Whenever B is C, every C is D.
Under the antecedent condition, the first premise supplies “Every C is A.” The second premise states “Every A is D” without that condition. Chaining the two yields “Every C is D” under the original condition.
It would be mistaken to discard the first condition and claim unconditionally that every C is D.
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Conjunctive Syllogisms with Conditional Propositions
كلما كان ب ج، فكل ج د
Whenever B is C, every C is D.
Under the antecedent condition, the first premise supplies “Every C is A.” The second premise states “Every A is D” without that condition. Chaining the two yields “Every C is D” under the original condition.
It would be mistaken to discard the first condition and claim unconditionally that every C is D.