什么是减法

Algebra of Proofs
By M. E. Szabo, Fred Szabo
Algebra of Proofs
A Tour of Representation Theory
By Martin Lorenz
A separate part of the book is devoted to each of these areas and they are all treated in sufficient depth to enable the reader to pursue research in representation theory.
Abstract and Concrete Categories: The Joy of Cats
By George E. Strecker, Jiri Adamek, Horst Herrlich
Numerous examples, ranging from general to specific, illuminate the text. 1990 edition, updated 2004.
Categorification in Geometry, Topology, and Physics
By Anna Beliakova, Aaron D. Lauda
... topology; now knowing about the ́etale topology, we might prefer to consider ́etale constructible sheaves8. The remarkable thing about the ́etale topology on a complex algebraic variety is that it is a purely algebraic object: the ...
Moufang Loops and Groups with Triality are Essentially the Same Thing
By J. I. Hall
... Automorphisms of Two-Generator Free Groups and Spaces of Isometric Actions on the Hyperbolic Plane, 2019 Jeffrey Galkowski, Distribution of Resonances in Scattering by Thin Barriers, 2019 Viktoria Heu and Frank Loray, Flat Rank Two ...
A General Character Theory for Partially Ordered Sets and Lattices
By Karl Heinrich Hofmann, Klaus Keimel
A General Character Theory for Partially Ordered Sets and Lattices