33 lines
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33 lines
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<!Converted with LaTeX2HTML 0.6.5 (Tue Nov 15 1994) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds >
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<TITLE>6.2. Data Type Predicates</TITLE>
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<b>Common Lisp the Language, 2nd Edition</b>
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<BR> <HR><A NAME=tex2html2398 HREF="node72.html"><IMG ALIGN=BOTTOM ALT="next" SRC="icons/next_motif.gif"></A> <A NAME=tex2html2396 HREF="node69.html"><IMG ALIGN=BOTTOM ALT="up" SRC="icons/up_motif.gif"></A> <A NAME=tex2html2390 HREF="node70.html"><IMG ALIGN=BOTTOM ALT="previous" SRC="icons/previous_motif.gif"></A> <A NAME=tex2html2400 HREF="node1.html"><IMG ALIGN=BOTTOM ALT="contents" SRC="icons/contents_motif.gif"></A> <A NAME=tex2html2401 HREF="index.html"><IMG ALIGN=BOTTOM ALT="index" SRC="icons/index_motif.gif"></A> <BR>
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<B> Next:</B> <A NAME=tex2html2399 HREF="node72.html"> General Type Predicates</A>
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<B>Up:</B> <A NAME=tex2html2397 HREF="node69.html"> Predicates</A>
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<B> Previous:</B> <A NAME=tex2html2391 HREF="node70.html"> Logical Values</A>
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<HR> <P>
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<H1><A NAME=SECTION001020000000000000000>6.2. Data Type Predicates</A></H1>
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Perhaps the most important predicates in Lisp are those that deal
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with data types; that is, given a data object one can determine whether
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or not it belongs to a given type, or one can compare two type specifiers.
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<LI> <A NAME=tex2html2402 HREF="node72.html#SECTION001021000000000000000"> General Type Predicates</A>
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<LI> <A NAME=tex2html2403 HREF="node73.html#SECTION001022000000000000000"> Specific Data Type Predicates</A>
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