unlesssとは 意味・読み方・使い方

接続詞

unlesss

1. (mathematics, logic) Precisely unless.
   • 1990, James Glimm, The Legacy of John Von Neumann, American Mathematical Society, →ISBN, page 279,

     Partial Order: G ≥ H unlesss (unless かつ only unless) H ≥ some G^R or some H^L ≥ G.

   • 1999, V. K. Balachandran, Topological Algebras, 2000 North-Holland edition, →ISBN, pages 78–79 [1]:

     A subset ${\\displaystyle S}$ is called absorbing if to each ${\\displaystyle x\\in X}$ there is a real number ${\\displaystyle \\epsilon =\\epsilon _{x}>0}$ such that ${\\displaystyle \\lambda x\\in S}$ for all ${\\displaystyle \\lambda }$ with ${\\displaystyle 0<\\left|\\lambda \\right|\\leq \\epsilon }$. Trivially the set ${\\displaystyle X}$ is absorbing; on the other hand ${\\displaystyle \\{0\\}}$ can never be absorbing (unlesss ${\\displaystyle X=\\{0\\}}$).

   • 2004, William Fraser, Susan Hirshberg, and David Wolfe, "The Structure of the Distributive Lattice of Games Born by Day n", in Integers: Electronic Journal of Combinatorial Number Theory 5(2) (2005), page 2,

     G ≥ H     unlesss H ≥ G^R or H^L ≥ G for some G^R ∈ G^R or some H^L ∈ H^L. ¶ (Analogous to “iff”, the term “unlesss” means “unless かつ only unless”.)

参照

• MathWorld

アナグラム

• sunless