User blog comment:KthulhuHimself/Library Function/@comment-4224897-20151105021001/@comment-27014275-20151106110736

Perhaps, but keep in mind that what you said means that defining X-lang in english will lead to a "Undefined" expression (look above), as it can create english, and perhaps any other language.

Using english to explain the "truth" of an english sentence might lead to the same problem, but in a twist of events (as I have checked it), this doesn't necessarily lead to "Undefined" expressions.