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Search: solve:EX7960
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BP1240 Contains an un-nested white rectangle vs doesn't
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CROSSREFS

Adjacent-numbered pages:
BP1235 BP1236 BP1237 BP1238 BP1239  *  BP1241 BP1242 BP1243 BP1244 BP1245

CONCEPT existence (info | search)

AUTHOR

Leo Crabbe

    page 1

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