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    Char-bit-constrp

    Constraints on the value of CHAR_BIT.

    Signature
    (char-bit-constrp char-bit) → yes/no
    Returns
    yes/no — Type (booleanp yes/no).

    It must be an integer that is at least 8.

    Definitions and Theorems

    Function: char-bit-constrp

    (defun char-bit-constrp (char-bit)
      (declare (xargs :guard t))
      (and (integerp char-bit)
           (>= char-bit 8)))

    Theorem: booleanp-of-char-bit-constrp

    (defthm booleanp-of-char-bit-constrp
      (b* ((yes/no (char-bit-constrp char-bit)))
        (booleanp yes/no))
      :rule-classes :rewrite)