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English definition of “Fundamental Counting Principle”

Fundamental Counting Principle

noun [U]  /ˈfʌn·dəˈmen·təl ˈkɑʊn·tɪŋ ˌprɪn·sə·pəl/
mathematics a rule that says if there are x ways in which one thing can be done, and y ways in which another thing can then be done, then there are x×y ways in which the two things can be done one after the other
(Definition of Fundamental Counting Principle from the Cambridge Academic Content Dictionary © Cambridge University Press)
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