I (format directive) Tilde I: Indent I/O customization variable Glossary Section ``I'' identical Glossary Section ``I'' identifier Glossary Section ``I'' IDENTITY Function IDENTITY :identity Macro PRINT-UNREADABLE-OBJECT :identity-with-one-argument Macro DEFINE-METHOD-COMBINATION :ieee-floating-point Variable *FEATURES* IF Special Operator IF if (loop keyword) Summary of Conditional Execution Clauses Conditional Execution Clauses Macro LOOP :if-does-not-exist Function OPEN Function LOAD :if-exists Function OPEN IGNORABLE Declaration IGNORE, IGNORABLE IGNORE Declaration IGNORE, IGNORABLE IGNORE-ERRORS Macro IGNORE-ERRORS IMAGPART Function REALPART, IMAGPART immutable Glossary Section ``I'' implementation Glossary Section ``I'' implementation limit Glossary Section ``I'' implementation-defined Glossary Section ``I'' implementation-dependent Glossary Section ``I'' implementation-independent Glossary Section ``I'' implicit block Glossary Section ``I'' implicit compilation Glossary Section ``I'' implicit progn Glossary Section ``I'' implicit tagbody Glossary Section ``I'' import Glossary Section ``I'' IMPORT Function IMPORT :import-from Macro DEFPACKAGE improper list Glossary Section ``I'' in (loop keyword) The for-as-in-list subclause The for-as-hash subclause The for-as-package subclause Macro LOOP IN-PACKAGE Macro IN-PACKAGE inaccessible Glossary Section ``I'' INCF Macro INCF, DECF :include Type Relationships Integrating Types and Classes Macro DEFSTRUCT indefinite extent Glossary Section ``I'' indefinite scope Glossary Section ``I'' :index Macro WITH-INPUT-FROM-STRING indicator Glossary Section ``I'' indirect instance Glossary Section ``I'' inherit Glossary Section ``I'' :inherited Function FIND-SYMBOL Macro WITH-PACKAGE-ITERATOR Function INTERN :initarg Object Creation and Initialization Declaring the Validity of Initialization Arguments Rules for Initialization Arguments Definitions of Make-Instance and Initialize-Instance Inheritance of Slots and Slot Options Standard Generic Function REINITIALIZE-INSTANCE Standard Generic Function SHARED-INITIALIZE Standard Generic Function UPDATE-INSTANCE-FOR-DIFFERENT-CLASS Standard Generic Function UPDATE-INSTANCE-FOR-REDEFINED-CLASS Macro DEFCLASS Macro DEFINE-CONDITION :init-form Macro DEFCLASS :initform Object Creation and Initialization Initialization Arguments Defaulting of Initialization Arguments Rules for Initialization Arguments Shared-Initialize Initialize-Instance Definitions of Make-Instance and Initialize-Instance Reinitializing an Instance Introduction to Slots Inheritance of Slots and Slot Options Standard Generic Function SHARED-INITIALIZE Standard Generic Function UPDATE-INSTANCE-FOR-DIFFERENT-CLASS Standard Generic Function UPDATE-INSTANCE-FOR-REDEFINED-CLASS Standard Generic Function SLOT-UNBOUND Macro DEFCLASS Standard Generic Function INITIALIZE-INSTANCE Macro DEFINE-CONDITION Glossary Section ``I'' initial pprint dispatch table Glossary Section ``I'' initial readtable Glossary Section ``I'' :initial-contents Sharpsign A Function MAKE-ARRAY Function ADJUST-ARRAY Printing Other Arrays :initial-element Function MAKE-LIST Function MAKE-ARRAY Function ADJUST-ARRAY Function MAKE-STRING Function MAKE-SEQUENCE initialization argument list Glossary Section ``I'' initialization form Glossary Section ``I'' INITIALIZE-INSTANCE Standard Generic Function INITIALIZE-INSTANCE initially (loop keyword) Parsing Loop Clauses Expanding Loop Forms Summary of Miscellaneous Clauses Order of Execution Iteration Control Initial and Final Execution Macro LOOP :initial-offset Macro DEFSTRUCT :initial-value Function REDUCE INLINE Declaration INLINE, NOTINLINE input Glossary Section ``I'' :input Function OPEN INPUT-STREAM-P Function INPUT-STREAM-P, OUTPUT-STREAM-P INSPECT Function INSPECT :installed Glossary Section ``V'' instance Introduction to Classes Glossary Section ``I'' :instance Introduction to Slots Inheritance of Slots and Slot Options Macro DEFCLASS Macro DEFINE-CONDITION int-char Removed Operators integer Glossary Section ``I'' INTEGER System Class INTEGER INTEGER-DECODE-FLOAT Function DECODE-FLOAT, SCALE-FLOAT, FLOAT-RADIX, FLOAT-SIGN, FLOAT-DIGITS, FLOAT-PRECISION, INTEGER-DECODE-FLOAT INTEGER-LENGTH Function INTEGER-LENGTH INTEGERP Function INTEGERP :interactive Interactive Use of Restarts Function INVOKE-RESTART-INTERACTIVELY Macro RESTART-CASE interactive stream Glossary Section ``I'' INTERACTIVE-STREAM-P Function INTERACTIVE-STREAM-P :interactive-function Interactive Use of Restarts Function INVOKE-RESTART-INTERACTIVELY Macro RESTART-BIND intern Glossary Section ``I'' INTERN Function INTERN :intern Macro DEFPACKAGE :internal Function FIND-SYMBOL Macro WITH-PACKAGE-ITERATOR Function INTERN internal symbol Internal and External Symbols Glossary Section ``I'' internal time Internal Time Glossary Section ``I'' internal time unit Glossary Section ``I'' INTERNAL-TIME-UNITS-PER-SECOND Constant Variable INTERNAL-TIME-UNITS-PER-SECOND interned Glossary Section ``I'' interpreted function Glossary Section ``I'' interpreted implementation Glossary Section ``I'' INTERSECTION Function INTERSECTION, NINTERSECTION interval designator Glossary Section ``I'' into (loop keyword) Local Variable Initializations Value Accumulation Clauses Termination Test Clauses Macro LOOP invalid Glossary Section ``I'' INVALID-METHOD-ERROR Function INVALID-METHOD-ERROR :invert Effect of Readtable Case on the Lisp Printer Effect of Readtable Case on the Lisp Reader Glossary Section ``C'' INVOKE-DEBUGGER Function INVOKE-DEBUGGER INVOKE-RESTART Function INVOKE-RESTART INVOKE-RESTART-INTERACTIVELY Function INVOKE-RESTART-INTERACTIVELY :io Function OPEN is signaled Error Terminology ISQRT Function SQRT, ISQRT it (loop keyword) Conditional Execution Clauses Notes about Loop Macro LOOP iteration form Glossary Section ``I'' iteration variable Glossary Section ``I''