De Morgan, Augustus, 1806-1871. A budget of paradoxes / by Augustus De Morgan ... reprinted, with the author's additions, from the Athenŭm.

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De Morgan, Augustus, 1806-1871.

A budget of paradoxes / by Augustus De Morgan ... reprinted, with the author's additions, from the Athenŭm.

De Morgan, Sophia Elizabeth (Frend), 1809-1892,

Smith, David Eugene, 1860-1944.

Paradoxes.