proba – Shortcuts commands to symbols used in probability texts

This pack­age in­cludes some of the most of­ten used com­mands in prob­a­bil­ity texts, e.g. prob­a­bil­ity, ex­pec­ta­tion, vari­ance, etc. It also in­cludes some short com­mands for set (black­board) or fil­tra­tions (cal­li­graphic). It re­quires LaTeX2ε and the ams­fonts pack­age.