The validity of Schmid’s law is assumed when using a form of finite element analysis named for this property of crystals. The result of a phenomenon related to this property must be about equal for two materials if the two paths are somewhat close to the neutral path under Prager’s consistency condition. That condition is part of a “flow theory” named for this property. In a model proposed by Eugene (*) Bingham, toothpaste is an often-used example that exhibits this property. Yielding is defined when a resulting material exhibits this property’s “behavior,” and unlike its alphabetically-former (-5[1])counterpart, this property is measured after stress is applied. For 10 points, name this property defined by the ability of a material to undergo deformation and is contrasted with elasticity. ■END■