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• Printer

Print-eprefix-option

Print an optional encoding prefix.

Signature

(print-eprefix-option eprefix? pstate) → new-pstate

Arguments

eprefix? — Guard (eprefix-optionp eprefix?).

pstate — Guard (pristatep pstate).

Returns

new-pstate — Type (pristatep new-pstate).

If there is no prefix, we print nothing.

Definitions and Theorems

Function: print-eprefix-option

(defun print-eprefix-option (eprefix? pstate)
  (declare (xargs :guard (and (eprefix-optionp eprefix?)
                              (pristatep pstate))))
  (let ((__function__ 'print-eprefix-option))
    (declare (ignorable __function__))
    (eprefix-option-case eprefix?
                         :some (print-eprefix eprefix?.val pstate)
                         :none (pristate-fix pstate))))

Theorem: pristatep-of-print-eprefix-option

(defthm pristatep-of-print-eprefix-option
  (b* ((new-pstate (print-eprefix-option eprefix? pstate)))
    (pristatep new-pstate))
  :rule-classes :rewrite)

Theorem: print-eprefix-option-of-eprefix-option-fix-eprefix?

(defthm print-eprefix-option-of-eprefix-option-fix-eprefix?
  (equal (print-eprefix-option (eprefix-option-fix eprefix?)
                               pstate)
         (print-eprefix-option eprefix? pstate)))

Theorem: print-eprefix-option-eprefix-option-equiv-congruence-on-eprefix?

(defthm
   print-eprefix-option-eprefix-option-equiv-congruence-on-eprefix?
  (implies (eprefix-option-equiv eprefix? eprefix?-equiv)
           (equal (print-eprefix-option eprefix? pstate)
                  (print-eprefix-option eprefix?-equiv pstate)))
  :rule-classes :congruence)

Theorem: print-eprefix-option-of-pristate-fix-pstate

(defthm print-eprefix-option-of-pristate-fix-pstate
  (equal (print-eprefix-option eprefix? (pristate-fix pstate))
         (print-eprefix-option eprefix? pstate)))

Theorem: print-eprefix-option-pristate-equiv-congruence-on-pstate

(defthm print-eprefix-option-pristate-equiv-congruence-on-pstate
  (implies (pristate-equiv pstate pstate-equiv)
           (equal (print-eprefix-option eprefix? pstate)
                  (print-eprefix-option eprefix? pstate-equiv)))
  :rule-classes :congruence)