Tags: decision theory, Monty-Hall in partial Markov. References. Causal Inference by String Diagram Surgery (Jacobs, Kissinger, Zanasi) A New Notation for Arrows (Patterson) Generalising Monads to Arrows (Hughes) Just do It, Simple Monadic Equational Reasoning (Gibbons, Hinze) Evidential Decision Theory via Partial Markov Categories (Di Lavore, Roman, 2023)