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11.1.2 Standardized Packages

This section describes the packages that are available in every conforming implementation. A summary of the names and nicknames of those standardized packages is given in Figure 11–2. 

  Name              Nicknames  
  COMMON-LISP       CL         
  COMMON-LISP-USER  CL-USER    
  KEYWORD           none       

  Figure 11–2: Standardized Package Names
• The COMMON-LISP Package  
• Constraints on the COMMON-LISP Package for Conforming Implementations  
• Constraints on the COMMON-LISP Package for Conforming Programs  
• Some Exceptions to Constraints on the COMMON-LISP Package for Conforming Programs  
• The COMMON-LISP-USER Package  
• The KEYWORD Package  
• Interning a Symbol in the KEYWORD Package  
• Notes about The KEYWORD Package  
• Implementation-Defined Packages