The
structure of
logic; it's method of communication.
Classical or
traditional logic was first
formulated by the
Greek philosopher Aristotle, who developed rules of
syllogistic reasoning. In it's most simple form a
syllogism is an argument made up of 3
statements:
Major premise - "Only human beings have 46 chromosomes."
Minor premise - "This unknown blood sample has 46 chromosomes."
Conclusion - "Therefore, this blood came from a human being."
or
Major premise - "All riding horses have 4 legs"
Minor premise - "John owns a riding horse."
Conclusion - "Therefore, John's horse has 4 legs."
Logical arguments can also be mapped out using Venn diagrams. However, this deductive logic can be completely invalidated by the use of inductive logic.