| eqd(sys, d, sys0) ⊦ ∀ nam. cdom(nam) ⇒ d → contents(sys, nam) = contents(sys0, nam) |
eqd(sys, d, sys0), cdom(nam) ⇒ d, eqd(sys0, d, sys) ⊦ contents(sys, nam) = contents(sys0, nam)
[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : MeydenIntrans, , eqd-reflexivity, ⊦ eqd(sys, d, sys)], [CSIMPNAMEDFORWARD : MeydenIntrans, , eqd-transitivity, ⊦ eqd(sys, d, sys0) ∧ eqd(sys0, d, sys1) → eqd(sys, d, sys1)], [CSIMPNAMEDFORWARD : MeydenIntrans, , eqd-symmetry, ⊦ eqd(sys, d, sys0) → eqd(sys0, d, sys)])]]