A syllogism is a formal rule to combine logical premises. The classic is Aristotle's:
FROM "all men are mortal
AND "Socrates is a man"
CONCLUDE: "Socrates is mortal".
. This is using a general syllogism of the form:
FROM "all members of CLASS(x) HAS_PROPERTY(y)
AND "ENTITY(z) is of CLASS(x)"
CONCLUDE: "ENTITY(z) HAS_PROPERTY(y)"
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