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## 4.2.1 Data Type Definition

Information about type usage is located in the sections specified in Figure 4-1. Figure 4-7 lists some classes that are particularly relevant to the object system. Figure 9-1 lists the defined condition types.

    Section                                      Data Type
    ----------

    Section 4.3 (Classes)                        Object System types
    Section 7.5 (Slots)                          Object System types
    Section 7 (Objects)                          Object System types
    Section 7.6 (Generic Functions and Methods)  Object System types
    Section 9.1 (Condition System Concepts)      Condition System types
    Section 4 (Types and Classes)                Miscellaneous types
    Section 2 (Syntax)                           All types---read and print syntax
    Section 22.1 (The Lisp Printer)              All types---print syntax
    Section 3.2 (Compilation)                    All types---compilation issues

Figure 4-1. Cross-References to Data Type Information

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