representable function造句

Solovay's result shows that it is not necessary to assume that all infinite-dimensional vector spaces admit discontinuous linear maps, and there are schools of analysis which adopt a more constructivism, there is Ceitin's theorem, which states that " every " function is continuous ( this is to be understood in the terminology of constructivism, according to which only representable functions are considered to be functions ).
It's difficult to find representable function in a sentence. 用representable function造句挺难的