@article{oai:kitami-it.repo.nii.ac.jp:00006340, author = {磯部, 煕郎}, issue = {1}, journal = {北見工業大学研究報告}, month = {Oct}, note = {application/pdf, Let R be a semi-ordered vector space. We put R^+={x:x∈R,x≧0}  R^+ is a semi-ordered set with the least element 0 and satisfies the following conditions:    I.(1)for every a,b∈R^+ we have a+b∈R^+,      (2)(a+b)+c=a+(b+c),      (3)a+b=b+a,      (4)a+0=a,      (5)for every a,b∈R^+ we have a≦a+b,      (6)a+c=b+c implies a=b,      (7)if a≦b,then we have uniquely determined c∈R^+ such that a+c=b,    II.(1)for any real number α≧O and a∈R^+ we haveαa∈R^+,      (2)α(βa)=(αβ)a,      (3)α(a+b)=αa+αb,      (4)(α+β)a=αa+βa,      (5)1a=a,  Generally let x be a semi-ordered set and we assume that x satisfies the previous conditions l. (1)-(7)and II.(1)-(5). In this paper,such a semi-ordered set x is styled as “a semi-ordered set with the least element and non-negative real domain of operators". In this paper we discuss the existence of a semi-ordered vector space R which R^+=X and some properties of x.}, pages = {103--107}, title = {Semi-ordered Vector Space のPositive Cone になるようなSemi-ordered Space について}, volume = {5}, year = {1973} }