1) Informal fallacy 
Anangeon (ἀναγκαῖον, `necessary`), also known as dicaeologia (δικαιολογία, `a plea in defense`), is a specious method of argument, where the basis lies in inevitability or necessity. For example, `Yes, I missed school today, but I was sick and wouldn`t have learned anything anyway`—this argument ignores the need to g...