AjRools.Expert.World.ProcessRetractedFact C# (CSharp) Метод

        private void ProcessRetractedFact(NameVerbValueFact fact)
        {
            IList<Rule> newretracted = new List<Rule>();

            foreach (var rule in this.fired)
                if (rule.Conditions.Any(c => c is NameVerbValueFact && ((NameVerbValueFact)c).Name == fact.Name))
                    if (rule.RetractIfNotReady(this))
                        newretracted.Add(rule);

            foreach (var rule in newretracted)
            {
                this.fired.Remove(rule);
                this.notfired.Add(rule);
            }
        }