みなさま、
慶応大学の田中大海です。下記の通り三田計算論理セミナーを開催いたします。
URL:https://abelard.flet.keio.ac.jp/person/minesima/seminar/clseminar.html
日時:10月10日(火) 16:30〜
場所:慶應義塾大学三田キャンパス西校舎544教室 (地図の5番の建物) (
https://www.keio.ac.jp/ja/maps/mita.html)
形式:対面のみ(事前登録は必要ありません)
講演者:中村誠希 (東京工業大学)
講演タイトル:(Un)decidability and Complexity of Equational Theories of
Existential Calculi of Relations
概要:
We consider the (un)decidability and complexity of equational theories of
calculi of relations. Calculi of relations are algebraic systems with
operations on binary relations (such as union, intersection, complement,
composition, converse, and transitive closure).
In this talk, after introducing Tarski's calculus of relations, we focus on
some equational theories of ``existential'' calculi of relations, give
sketches of the (un)decidability and complexity results, and give open
problems.
Here, ``existential'' means that complement only applies to constants or
variables. Such fragments are related with existential logics.
よろしくお願いいたします。
田中大海
--
慶應義塾大学 文学研究科
哲学・倫理学専攻 哲学分野
田中大海 (email: hiromitanaka(a)keio.jp)