Testing threshold functions using implied minterm structure
Anil K. Sarje, NRIPENDRA N. BISWAS · International Journal of Systems Science · 1983
A geometrical structure called the implied minterm structure (IMS) has been developed from the properties of minterms of a threshold function. The IMS is useful for the manual testing of linear separability of switching functions of up to six variables. This testing is done just by inspection of the plot of the function on the IMS.