Invalid argument:
Every human is an animal.
Every goat is an animal.
Therefore every human is a goat.
The two groups share the broader class animal, but neither premise places humans within goats. Merely repeating a middle-looking word does not guarantee a valid syllogism; its logical arrangement matters.
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A shared predicate is not enough
Kinds of Argument: Syllogism, Premises, Conclusion and Three Terms
Invalid argument:
Every human is an animal.
Every goat is an animal.
Therefore every human is a goat.
The two groups share the broader class animal, but neither premise places humans within goats. Merely repeating a middle-looking word does not guarantee a valid syllogism; its logical arrangement matters.