The coinductive λ-calculus Λ arises by a coinductive interpretation of the grammar of the standard λ-calculus Λ and contains non-wellfounded λ-terms. An appropriate notion of reduction is analyzed and proven to be confluent by means of a detailed analysis of the usual Tait/MartinLöf style development argument. This yields bounds for the lengths of those joining reduction sequences that are guar...

The notion of τ -confluence provides a form of partial order reduction of Labelled Transition Systems (Ltss), by enabling to identify the τ -transitions, whose execution does not alter the observable behaviour of the system. Several forms of τ -confluence adequate with branching bisimulation were studied in the literature, ranging from strong to weak forms according to the length of τ -transiti...

To improve the efficiency of model checking in general, and probabilistic model checking in particular, several reduction techniques have been introduced. Two of these, confluence reduction and partial-order reduction by means of ample sets, are based on similar principles, and both preserve branching-time properties for probabilistic models. Confluence reduction has been introduced for probabi...

We prove that fully-extended, orthogonal infinitary combinatory reduction systems with finite right-hand sides are confluent modulo identification of hypercollapsing subterms. This provides the first general confluence result for infinitary higher-order rewriting.

CONTEXT Various techniques for reconstruction after superior mesenteric-splenic-portal vein confluence resection during pancreaticoduodenectomy have been introduced. A certain kind of vascular grafting may be necessary especially when long segmental resection of superior mesenteric-splenic-portal vein confluence is required. CASE REPORT We herein report the cases of two patients who underwent...

In the abstract operational semantics of Constraint Handling Rules (CHR), propagation rules, i.e. rules that only add information, can be applied again and again. This trivial non-termination is typically avoided by a propagation history. A more declarative approach are persistent constraints. Constraints that are introduced by propagation rules are made persistent and cannot be removed. Now a ...

This article describes the people and forests in traditional Secwépemc territory Interior Plateau of British Columbia (BC), Canada. It examines intersection neoliberal forest policy profound ecological change south-central region province, with careful attention paid to wider contexts settler colonialism. The critiques implementation reform (the Forest Range Practices Act, enacted 2004) as it c...

the purpose of this research is to understand the position of conflict resolution in international system. it can be said that, conflict resolution has formed after the second world war in three stages: foundations, constructions, reconstructions. conflict resolution has effective role in recognition of the routs and causes of formation of military conflicts and establishing peace in national, ...