<lem>

<lem> (lemma) contains the lemma, or base text, of a textual variation. [12.1. The Apparatus Entry, Readings, and Witnesses]
Moduletextcrit
Attributes
Contained by
textcrit: app rdgGrp
May contain
analysis: c interp interpGrp m pc phr s w
certainty: certainty precision
core: abbr add address bibl biblStruct binaryObject cb choice cit corr date del desc distinct ellipsis email emph expan foreign gap gb gloss graphic hi index l label lb lg list listBibl measure measureGrp media mentioned milestone name note noteGrp num orig p pb ptr q quote ref reg rs ruby said sic soCalled sp stage term time title unclear unit
dictionaries: lang
figures: figure notatedMusic table
gaiji: g
header: biblFull idno
linking: ab anchor join link linkGrp seg
msdescription: catchwords depth dim dimensions height heraldry locus locusGrp material msDesc objectType origDate origPlace secFol signatures stamp watermark width
namesdates: addName bloc country district eventName forename genName geo geogFeat geogName listEvent listNym listObject listOrg listPerson listPlace listRelation location objectName offset orgName persName persPronouns placeName region roleName settlement state surname
spoken: annotationBlock
textcrit: app listApp wit
textstructure: div docAuthor docDate docEdition docImprint docTitle epigraph floatingText
transcr: addSpan am damage delSpan ex fw handShift listTranspose metamark mod redo retrace secl space subst substJoin supplied surplus undo
character data
Note

The term lemma is used in text criticism to describe the reading given in the main text, which may be used as a heading in the apparatus itself. This usage connects it to mathematics (where a lemma is a proven proposition used as a step in a proof, a "given") and natural-language processing (where a lemma is the dictionary headword associated with an inflected form in the running text).

Example
<app>
 <lem wit="#El #Hg">Experience</lem>
 <rdg wit="#La" type="substantive">Experiment</rdg>
 <rdg wit="#Ra2" type="substantive">Eryment</rdg>
</app>
Content model
<content>
 <alternate minOccurs="0"
  maxOccurs="unbounded">
  <textNode/>
  <classRef key="model.divLike"/>
  <classRef key="model.divPart"/>
  <elementRef key="titlePage"/>
  <elementRef key="argument"/>
  <elementRef key="byline"/>
  <elementRef key="docAuthor"/>
  <elementRef key="docDate"/>
  <elementRef key="docEdition"/>
  <elementRef key="docImprint"/>
  <elementRef key="docTitle"/>
  <elementRef key="epigraph"/>
  <elementRef key="imprimatur"/>
  <elementRef key="titlePart"/>
  <elementRef key="epilogue"/>
  <elementRef key="performance"/>
  <elementRef key="prologue"/>
  <elementRef key="set"/>
  <classRef key="model.gLike"/>
  <classRef key="model.phrase"/>
  <classRef key="model.inter"/>
  <classRef key="model.global"/>
  <classRef key="model.rdgPart"/>
 </alternate>
</content>
Schema Declaration
element lem
{
   tei_att.global.attributes,
   tei_att.textCritical.attributes,
   tei_att.witnessed.attributes,
   (
      text
    | tei_model.divLike
    | tei_model.divPart
    | titlePage
    | argument
    | byline
    | tei_docAuthor
    | tei_docDate
    | tei_docEdition
    | tei_docImprint
    | tei_docTitle
    | tei_epigraph
    | imprimatur
    | titlePart
    | epilogue
    | performance
    | prologue
    | set
    | tei_model.gLike
    | tei_model.phrase
    | tei_model.inter
    | tei_model.global
    | tei_model.rdgPart
   )*
}