Question

Which of the following properties is/are true in context of well formed formula (WFF)?

• A. Each letter is a term
• B. If x and y are terms, then x = y is a formula
• C. If P is a formula, then 7P is a formula
• D. All of the above

Answer 1

The correct option is D All of the above

Well-formed formula is a finite sequence of symbols from a given alphabet that is part of a formal language. A formal language can be identified with the set of formulas in the language.

All are true in context of well-formed formula (WFF).

Each letter is a term.

If x and y are terms, then x = y is a formula.

If P is a formula, then 7P is a formula.