Goal of a derivation step.
author: Jens Dietrich version: 3.4 <7 March 05> since: 1.0 since: Prova re-integration author: Alex Kozlenkov version: 3.4 <7 March 05>
Apply a set of substitutions to a fact.
See Also:org.mandarax.kernel.Replacement the clause that is the result of applying the replacements Parameters: r - the collection of replacements