A scanner can reveal resource deposits in The Alters. That sounds straightforward enough, but it’s far more complex than just equipping and using a tool. Instead, you have to place Polygonal ...

Ian Pratt, Dominik Schoop, Expressivity in Polygonal, Plane Mereotopology, The Journal of Symbolic Logic, Vol. 65, No. 2 (Jun., 2000), pp. 822-838 ...