formal system in a sentence

Examples

1. The formal system of cardinal numerals, as used in Classical Arabic, is extremely complex.
2. There may be a formal system, with due process and the rule of law.
3. The basic objects of metalogical study are formal languages, formal systems, and their interpretations.
4. A formal system is used to derive one expression from one or more other expressions.
5. Propositional and predicate calculi are examples of formal systems.
6. *This is a fine example of a formal system.
7. A formal system might be syntactically incomplete by design : such as logics generally are.
8. The Russians want a formal system in place that could include inspections of weapons sites.
9. In a formal system a symbol may be used as a token in formal operations.
10. Mathematical logicians study formal systems but are just as often realists as they are formalists.