Besonderhede van voorbeeld: 200246380010608560

English

He partially answered his own question in Undecidable tiling problems in the hyperbolic plane which was published in 1978.

Tagalog

Bahagyang siya mitubag kanyang sariling mga katanungan sa pag-atip na kapsa Undecidable problema sa hayperboliko eroplano na kung saan ay nai-publish sa 1978.