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Equal probability principle

  1. Mar 27, 2013 #1
    Hey Guys,

    I have got a question.
    English is not my first language.

    Is the "equal-probability-principle" the same as "the equal-a-priori-probability-postulate"?

    Do both names describe the same process?

    Abby o:)
  2. jcsd
  3. Mar 27, 2013 #2


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    Staff Emeritus
    Science Advisor

    I have not heard the phrase "equal-probability-principle", but I believe that the "equal-a-priori-probability-postulate" refers to the assumption in statistical mechanics that for a system in equilibrium, all reachable microscopic states of the same energy are equally probable.
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