Difference between revisions of "Iff"
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In order to prove a statement of the form, "A iff B," it is necessary to prove two distinct implications: that A implies B ("if A then B") and that B implies A ("if B then A"). | In order to prove a statement of the form, "A iff B," it is necessary to prove two distinct implications: that A implies B ("if A then B") and that B implies A ("if B then A"). | ||
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| + | If a statement is an "iff" statement, then it is a [[biconditional]] statement. | ||
{{stub}} | {{stub}} | ||
[[Category:Definition]] | [[Category:Definition]] | ||
Revision as of 21:00, 1 November 2006
Iff is an abbreviation for the phrase "if and only if."
In order to prove a statement of the form, "A iff B," it is necessary to prove two distinct implications: that A implies B ("if A then B") and that B implies A ("if B then A").
If a statement is an "iff" statement, then it is a biconditional statement.
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