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{{Short description|Polish philosopher}} '''Czesław Lejewski''' (1913 in Minsk – 2001 in Doncaster) was a Polish philosopher and [[logic]]ian, and a member of the [[Lwow-Warsaw School of L ...

...rization of theories having only one countable model, obtained also by the Polish logician [[Czesław Ryll-Nardzewski]], and results on prime models, obtained [[Category:Swedish logicians]] ...

{{Short description|Polish mathematician and philosopher}} | birth_place = [[Warsaw]], [[Second Polish Republic|Poland]] ...

He was born in [[Toronto]], on 30 September 1957, to a Polish father Saul Yablo and Romanian-Canadian mother Gloria Yablo (née Herman), b [[Category:American logicians]] ...

...rpretation|intended semantics]] for language <math>\mathcal{L}</math>. The Polish logician [[Alfred Tarski]] identified three features of an adequate charact ...ed. [[Oxford University Press]]. Originally published in [[Polish language|Polish]] and [[German language|German]]. ...

...ise" /><ref name="TuringBook" /> In fact fixed points were earlier used by Polish codebreaker, Henryk Zygalski, as the basis for his method of attack on Enig [[Category:German logicians]] ...

...)|Ernst Schröder]], [[Leopold Loewenheim]], [[Thoralf Skolem]], and Polish logicians into the 1950s. Most notably, it is the notation of [[Kurt Gödel]]'s landma ...es Press. A gentle introduction to [[first-order logic]] by two first-rate logicians. ...

Originally, logicians defined a term to be a ''character string'' adhering to certain building ru ...bda term, also converting common [[Infix notation|infix]] operators into [[Polish notation|prefix]] form. ...

...wledge about Stoic logic as a system was lost until the 20th century, when logicians familiar with the modern [[propositional calculus]] reappraised the ancient ...he 20th-century,<ref name="otoolejennings397"/> beginning with the work of Polish logician [[Jan Łukasiewicz]]<ref name="otoolejennings397"/> and [[Benson Ma ...

{{see also|List of logicians}} {{term |1=[[Polish notation]]}} ...