Halmos

From Fresh Dictionary

Contents 1 English 1.1 Etymology 1.2 Noun 1.3 Synonyms

English

Etymology

Named for (Hungarian-born) American mathematician Paul Halmos (born 1916) who first used it in mathematics, after seeing it marking the end of articles in magazines.

Noun

1. ((mathematics{{#if:|, {{{2}}}{{#if:|, {{{3}}}{{#if:|, {{{4}}}{{#if:|, {{{5}}}{{#if:|, {{{6}}}{{#if:|, {{{7}}}{{#if:|, {{{8}}}{{#if:|, {{{9}}}}}}}}}}}}}}}}}}})) The symbol "∎" (Unicode U+220E, "END OF PROOF") marking the end of a proof.

Synonyms

• tombstone