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• Source-character-set

Ascii-basic-source-char-fix

Fixer for ascii-basic-source-char.

Signature

(ascii-basic-source-char-fix x) → fixed-x

Arguments

x — Guard (ascii-basic-source-charp x).

Returns

fixed-x — Type (ascii-basic-source-charp fixed-x).

Definitions and Theorems

Function: ascii-basic-source-char-fix

(defun ascii-basic-source-char-fix (x)
  (declare (xargs :guard (ascii-basic-source-charp x)))
  (mbe :logic
       (if (ascii-basic-source-charp x)
           x
         #\Space)
       :exec x))

Theorem: ascii-basic-source-charp-of-ascii-basic-source-char-fix

(defthm ascii-basic-source-charp-of-ascii-basic-source-char-fix
  (b* ((fixed-x (ascii-basic-source-char-fix x)))
    (ascii-basic-source-charp fixed-x))
  :rule-classes :rewrite)

Theorem: ascii-basic-source-char-fix-when-ascii-basic-source-charp

(defthm ascii-basic-source-char-fix-when-ascii-basic-source-charp
  (implies (ascii-basic-source-charp x)
           (equal (ascii-basic-source-char-fix x)
                  x)))