Template:Selected anniversaries/September 13: Difference between revisions

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||1859: Wilhelm Joseph Grailich dies ... physicist, mineralogist and crystallographer. No pic.
||1859: Wilhelm Joseph Grailich dies ... physicist, mineralogist and crystallographer. No pic.


File:Dmitry_Mirimanoff.jpg|link=Dmitry Mirimanoff (nonfiction)|1861: Mathematician [[Dmitry Mirimanoff (nonfiction)|Dmitry Mirimanoff]] born. In 1917, he will introduce (though not as explicitly as John von Neumann later) the cumulative hierarchy of sets and the notion of von Neumann ordinals; although he will introduce a notion of regular (and well-founded set) he will not consider regularity as an axiom, but also explore what is now called non-well-founded set theory, and have an emergent idea of what is now called bisimulation.
File:Dmitry_Mirimanoff.jpg|link=Dmitry Mirimanoff (nonfiction)|1861: Mathematician [[Dmitry Mirimanoff (nonfiction)|Dmitry Mirimanoff]] born. In 1917, he will introduce the cumulative hierarchy of sets and the notion of von Neumann ordinals; although he will introduce a notion of regular (and well-founded set) he will not consider regularity as an axiom, but also explore what is now called non-well-founded set theory, and the idea of what is now called bisimulation.


File:Constantin Carathéodory.jpg|link=Constantin Carathéodory (nonfiction)|1873: Mathematician and author [[Constantin Carathéodory (nonfiction)|Constantin Carathéodory]] born. He will pioneer the axiomatic formulation of thermodynamics along a purely geometrical approach.
File:Constantin Carathéodory.jpg|link=Constantin Carathéodory (nonfiction)|1873: Mathematician and author [[Constantin Carathéodory (nonfiction)|Constantin Carathéodory]] born. He will pioneer the axiomatic formulation of thermodynamics along a purely geometrical approach.

Revision as of 18:02, 13 September 2018