Chain rule: Difference between revisions

Latest revision as of 09:03, 26 March 2024

A basic inference rule used in most expert systems.

If A implies B and B implies C, then it is also true that A implies C. For example, if the fact that it is July in Boston implies that the temperature is above freezing, and having the temperature above freezing implies that no precipitation will reach the ground as snow, it follows that it will not snow in Boston in July.

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+{{Term
+|Display title=chain rule
-{{TermHeader}}
+|Definitions={{Definition
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+|Num=1
+|Meaning=A basic [[inference]] rule used in most [[expert systems]].
-<div class="termentry">
+|Explanation=If ''A'' implies ''B'' and ''B'' implies ''C'', then it is also true that ''A'' implies ''C''. For example, if the fact  that it is July in Boston implies that the [[temperature]] is above [[freezing]], and having the temperature  above freezing implies that no [[precipitation]] will reach the ground as [[snow]], it follows that it will  not snow in Boston in July.
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+}}
-== chain rule ==
+}}
-  </div>
-<div class="definition"><div class="short_definition">A basic [[inference]] rule used in most [[expert systems]].</div><br/> <div class="paragraph">If ''A'' implies ''B'' and ''B'' implies ''C'', then it is also true that ''A'' implies ''C''. For example, if the fact  that it is July in Boston implies that the [[temperature]] is above [[freezing]], and having the temperature  above freezing implies that no [[precipitation]] will reach the ground as [[snow]], it follows that it will  not snow in Boston in July.</div><br/> </div>
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-[[Category:Terms_C]]