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So8res
The likelihood of a piece of evidence e according to a hypothesis H, known as "the likelihood of e given H", is often written either Le(H), L(H∣e), or P(e∣H). On Arbital we generally prefer the Le(H) notation, or P(e∣H) if the value of P is clear from context.
Many students of statistics find it hard enough to keep the difference between P(H∣e) and P(e∣H) straight in their heads if we don't occasionally swap the order of the arguments by writing L(H∣e)=P(e∣H). Thus, we much prefer the notation Le(H)=P(e∣H).