The units of an ordered commutative monoid form an ordered commutative group #
The units of an ordered commutative monoid form an ordered commutative group.
Equations
The units of an ordered commutative additive monoid form an ordered commutative additive group.
Equations
The units of a linearly ordered commutative monoid form a linearly ordered commutative group.
The units of a linearly ordered commutative additive monoid form a linearly ordered commutative additive group.