• Top
  • Documentation
  • Books
  • Boolean-reasoning
  • Projects
  • Debugging
  • Community
  • Std
  • Proof-automation
  • Macro-libraries
  • ACL2
  • Interfacing-tools
  • Hardware-verification
  • Software-verification
    • Kestrel-books
      • Crypto-hdwallet
      • Apt
      • Error-checking
      • Fty-extensions
      • Isar
      • Kestrel-utilities
      • Set
      • C
        • Syntax-for-tools
          • Formalized-subset
          • Mapping-to-language-definition
          • Input-files
          • Compilation-database
          • Printer
          • Output-files
          • Abstract-syntax-operations
          • Implementation-environments
          • Abstract-syntax
            • Abstract-syntax-trees
            • Abstract-syntax-irrelevants
            • Type-specifier-lists
            • Ascii-identifiers
            • Abstraction-mapping
            • Standard
            • Storage-specifier-lists
              • Stor-spec-list-static-thread-p
              • Stor-spec-list-extern-thread-p
              • Stor-spec-list-thread-p
              • Stor-spec-list-typedef-p
              • Stor-spec-list-static-p
              • Stor-spec-list-register-p
              • Stor-spec-list-extern-p
              • Stor-spec-list-auto-p
            • Code-ensembles
            • Purity
            • Make-self-code-ensemble
          • Concrete-syntax
          • Disambiguation
          • Validation
          • Gcc-builtins
          • Preprocessing
          • Parsing
        • Atc
        • Transformation-tools
        • Language
        • Representation
        • Insertion-sort
        • Pack
      • Soft
      • Bv
      • Imp-language
      • Ethereum
      • Event-macros
      • Java
      • Riscv
      • Bitcoin
      • Zcash
      • Yul
      • ACL2-programming-language
      • Prime-fields
      • Json
      • Syntheto
      • File-io-light
      • Cryptography
      • Number-theory
      • Axe
      • Lists-light
      • Builtins
      • Solidity
      • Helpers
      • Htclient
      • Typed-lists-light
      • Arithmetic-light
    • X86isa
    • Axe
    • Execloader
  • Math
  • Testing-utilities

• Storage-specifier-lists

Stor-spec-list-extern-p

Check if a list of storage class specifiers has the form extern.

Signature

(stor-spec-list-extern-p storspecs) → yes/no

Arguments

storspecs — Guard (stor-spec-listp storspecs).

Returns

yes/no — Type (booleanp yes/no).

Definitions and Theorems

Function: stor-spec-list-extern-p

(defun stor-spec-list-extern-p (storspecs)
  (declare (xargs :guard (stor-spec-listp storspecs)))
  (equal (stor-spec-list-fix storspecs)
         (list (stor-spec-extern))))

Theorem: booleanp-of-stor-spec-list-extern-p

(defthm booleanp-of-stor-spec-list-extern-p
  (b* ((yes/no (stor-spec-list-extern-p storspecs)))
    (booleanp yes/no))
  :rule-classes :rewrite)

Theorem: stor-spec-list-extern-p-of-stor-spec-list-fix-storspecs

(defthm stor-spec-list-extern-p-of-stor-spec-list-fix-storspecs
  (equal (stor-spec-list-extern-p (stor-spec-list-fix storspecs))
         (stor-spec-list-extern-p storspecs)))

Theorem: stor-spec-list-extern-p-stor-spec-list-equiv-congruence-on-storspecs

(defthm
 stor-spec-list-extern-p-stor-spec-list-equiv-congruence-on-storspecs
 (implies (stor-spec-list-equiv storspecs storspecs-equiv)
          (equal (stor-spec-list-extern-p storspecs)
                 (stor-spec-list-extern-p storspecs-equiv)))
 :rule-classes :congruence)