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BP1251 BPs whose right-sorted examples exhibit the following property: if a square region of any right-sorted example is replaced with any other right-sorted example, the resultant image is also sorted right vs. BPs whose right-sorted examples do not exhibit this property.
BP1
BP969
BP1224
BP211
BP971
BP1249
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CROSSREFS

Adjacent-numbered pages:
BP1246 BP1247 BP1248 BP1249 BP1250  *  BP1252 BP1253 BP1254

KEYWORD

unwordable, meta (see left/right), links

AUTHOR

Leo Crabbe

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