| eqd(sys, d, sys0), inv(sys0), inv(sys), wf(cl) ⊦ eqd(run(sys, cl), d, run(sys0, purge(cl, d))) |
[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : run-base, , , ⊦ run(sys, []) = sys], [CSIMPNAMEDSEQ : purge-base, , , ⊦ purge([], d) = []], [CSIMPGEN : commandlist generated by [], +;])]]