Description: The extended nonnegative real numbers form a semiring left module. One could also have used subringAlg to get the same structure. (Contributed by Thierry Arnoux, 6-Sep-2018)
Ref | Expression | ||
---|---|---|---|
Hypotheses | xrge0slmod.1 | |
|
xrge0slmod.2 | |
||
Assertion | xrge0slmod | |