<marcxml:record xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:marcxml="http://www.loc.gov/MARC21/slim" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:madsrdf="http://www.loc.gov/mads/rdf/v1#" xmlns:ri="http://id.loc.gov/ontologies/RecordInfo#" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mets="http://www.loc.gov/METS/">
	    <marcxml:leader>01032nz   2200217n  4500</marcxml:leader>
	    <marcxml:controlfield tag="001">sh91003006</marcxml:controlfield>
	    <marcxml:controlfield tag="003">DLC</marcxml:controlfield>
	    <marcxml:controlfield tag="005">19910726153446.3</marcxml:controlfield>
	    <marcxml:controlfield tag="008">910620|| anannbab|          |a ana |||  </marcxml:controlfield>
	    <marcxml:datafield tag="010" ind1=" " ind2=" ">
      <marcxml:subfield code="a">sh 91003006 </marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="040" ind1=" " ind2=" ">
      <marcxml:subfield code="a">DLC</marcxml:subfield>
      <marcxml:subfield code="c">DLC</marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="053" ind1=" " ind2=" ">
      <marcxml:subfield code="a">Q338</marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="150" ind1=" " ind2="0">
      <marcxml:subfield code="a">Truth maintenance systems</marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="450" ind1=" " ind2="0">
      <marcxml:subfield code="a">Reason maintenance systems</marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="450" ind1=" " ind2="0">
      <marcxml:subfield code="a">TMS (Artificial intelligence)</marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="550" ind1=" " ind2="0">
      <marcxml:subfield code="w">g</marcxml:subfield>
      <marcxml:subfield code="a">Artificial intelligence</marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="670" ind1=" " ind2=" ">
      <marcxml:subfield code="a">Work cat.: Truth maintenance systems : ECAI-90 workshop, Stockholm, Sweden, August 6, 1990 : proceedings, c1991</marcxml:subfield>
      <marcxml:subfield code="b">(TMS)</marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="670" ind1=" " ind2=" ">
      <marcxml:subfield code="a">Artificial intel. &amp; expert sys. sourcebk.</marcxml:subfield>
      <marcxml:subfield code="b">(A method of keeping track of beliefs and their justifications so that if contradictions occur the incorrect beliefs or lines of reasoning and all conclusions resulting from them can be retracted)</marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="670" ind1=" " ind2=" ">
      <marcxml:subfield code="a">Encyc. art. intel.</marcxml:subfield>
      <marcxml:subfield code="b">(truth maintenance system (TMS))</marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="670" ind1=" " ind2=" ">
      <marcxml:subfield code="a">Dict. artific. intel. &amp; robotics</marcxml:subfield>
      <marcxml:subfield code="b">(Prefers: Reason maintenance)</marcxml:subfield>
    </marcxml:datafield>
	    <marcxml:datafield tag="675" ind1=" " ind2=" ">
      <marcxml:subfield code="a">Random House; McGraw-Hill dict. sci. tech.;</marcxml:subfield>
      <marcxml:subfield code="a">NASA;</marcxml:subfield>
      <marcxml:subfield code="a">INIS: Thes.;</marcxml:subfield>
      <marcxml:subfield code="a">Engr. index</marcxml:subfield>
    </marcxml:datafield>
	  </marcxml:record>