MarkovityIn Probability, The future depends only on today, not the past. P(A1∩A2∩A3∩⋯ )=P(A1)P(A2∣A1)P(A3∣A2)⋯P(A_1 \cap A_2 \cap A_3 \cap \cdots) = P(A_1) P(A_2 | A_1) P(A_3 | A_2) \cdotsP(A1∩A2∩A3∩⋯)=P(A1)P(A2∣A1)P(A3∣A2)⋯
