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{{short description|German-American philosopher and logician (born 1968)}} |nationality = American, German ...

{{Short description|German mathematician (1919–2006)}} | citizenship = [[Germans|German]] ...

Logicians make precise accounts of logical consequence regarding a given [[formal lan .... Originally published in [[Polish language|Polish]] and [[German language|German]]. ...

==The logicians' "function" 1850–1950== ...nal functions".{{sfn |Eves |1990 |p=222}} But by the late 19th century the logicians' research into the foundations of mathematics was undergoing a major split. ...

The German mathematician [[Moritz Pasch]] (1843–1930) was the first to accomplis Pieri was a member of a group of Italian geometers and logicians that Peano had gathered around himself in Turin. This group of assistants, ...

...etween logic and philosophy is also reflected in the fact that many famous logicians were also philosophers.<ref name="Jacquette"/> The philosophy of logic is c ...e under which a premise supports a conclusion.<ref name="Cambridge"/> Some logicians define valid inference or entailment in terms of logical necessity: the pre ...

...nformal logic}} Formal logic is the traditionally dominant field, and some logicians restrict logic to formal logic.{{sfnm|1a1=Craig|1y=1996|1loc=Formal and inf ...or example, the English sentence "the tree is green" is different from the German sentence "der Baum ist grün" but both express the same proposition.{{sfn|Ol ...