Once and For All
نویسندگان
چکیده
It has long been known that past-time operators add no expressive power to linear temporal logics. In this paper, we consider the extension of branching temporal logics with past-time operators. Two possible views regarding the nature of past in a branching-time model induce two different such extensions. In the first view, past is branching and each moment in time may have several possible futures and several possible pasts. In the second view, past is linear and each moment in time may have several possible futures and a unique past. Both views assume that past is finite. We discuss the practice of these extensions as specification languages, characterize their expressive power, and examine the complexity of their model-checking and satisfiability problems.
منابع مشابه
Design and Formulation of Once Daily Naproxen Sustained Release Tablet Matrix from Methocel K 15M CR and Methocel K 100M CR
The purpose of this work was to develop once daily sustained release (SR) matrix tablets of naproxen, an anti-inflammatory agent. The tablets were prepared by wet granulation method along with hydrophilic matrix materials like Methocel K 15M CR and Methocel K 100M CR. The granules were evaluated for bulk density, angle of repose, compressibility index, total porosity and drug content. The ...
متن کاملRehabilitation Sciences Students' Perception from Clinical Self-Efficacy Compared to Evaluation by Clinical Teachers
Introduction: Due to the close association between clinical competency and the quality of care concept, clinical competency has a special place in evaluating medical sciences students. This study was performed to investigate perceived clinical self-efficacy among students at the beginning and end of clinical education course and compare it to teachers' evaluation of students’ clinical competenc...
متن کاملEffect of irrigation intervals and humic acid on physiological and biochemical characteristic on medicinal plant of Thymus vulgaris
To investigate the effects of irrigation intervals and humic acid application on some phophysiological and biochemical of thyme (Thymus vulgaris), the experimental in the form of factorial in the design complete randomized block in four replications at Miandoab University Research Field in 2019. Experimental treatments were at four levels of irrigation intervals (once every three days, once eve...
متن کاملEfficacy of prokinetic agents in diabetic gastroparesis comparing symptomatology and scintigraphy – An open-label trial
Background: It is pertinent to objectively assess the severity of diabetic gastroparesis and tailor treatment accordingly. The current study was planned to document gastroparesis by gastric emptying scintigraphy (GES) objectively and see the effect of medications and diet control on clinical and GES after four weeks. Methods: A prospective, open-label randomized trial was conducted in the Depa...
متن کاملComparison of the frequency of Tinea Pedis in prayers in Kerman mosques and control group
Background: Tinea pedis is the most common fungal infection in adults. It is a common problem in communal areas such as swimming pools and hotels. Objective: To determine the frequency of tinea pedis in adult Muslims regularly attending mosques and to compare it with a control group. Patients and Methods: In a case-control study in 4 randomly selected mosques in Kerman, 99 adult Muslims praying...
متن کاملP-220: Vitamin E Protects Atrazine-Induced Toxicity in Testes of Mature Male Rats
Background: According to several reports there is a positive correlation between the lowered quality of semen and any exposure to toxic compound specially those particularly disrupt endocrine functions. Like other herbicides atrazine (ATR) induces endocrine disruption and consequently interferes with sexual hormones physiological functions. Therefore current study was designed in order to evalu...
متن کامل