Another invalid inference:
Some students are athletes.
Some students have memorized the Quran.
Therefore some athletes have memorized the Quran.
The two “some” groups may or may not overlap. The premises do not force the overlap, so the proposed conclusion is not entailed. Repeated vocabulary alone is insufficient.
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Two particular statements may not connect
Kinds of Argument: Syllogism, Premises, Conclusion and Three Terms
Another invalid inference:
Some students are athletes.
Some students have memorized the Quran.
Therefore some athletes have memorized the Quran.
The two “some” groups may or may not overlap. The premises do not force the overlap, so the proposed conclusion is not entailed. Repeated vocabulary alone is insufficient.