enrich Protocol-refines-Atomic , synchasg with comment: This specification defines the simulation relation, and proves the main forward and backward simulation lemmas.; predicates R1 : U × V; Input1 : I × J; Output1 : O × P; axioms R1-def : ⊦ R1(u, v) ↔ (∃ pa, n. n ≤ # pa ∧ MPath(pa) ∧ pa[n] = v ∧ (SA(pa) < n ⊃ RF(u, v); RP(u, v))); used for : s, ls; Input1-def : ⊦ Input1(i, j) ↔ (∃ pa. MPath(pa) ∧ pa[SA(pa)]i = j ∧ Input(i, inputs(pa))); Output1-def : ⊦ Output1(o, p) ↔ (∃ pa. pa[SA(pa)]o = p ∧ MPath(pa) ∧ Output(o, outputs(pa))); end enrich