Definition:Ordered Group Automorphism

Definition

Let $\struct {G, \circ, \preceq}$ be an ordered group.

An ordered group automorphism from $\struct {G, \circ, \preceq}$ to itself is a mapping $\phi: G \to G$ that is both:

$(1): \quad$ A group automorphism, that is, a group isomorphism from the group $\struct {G, \circ}$ to itself

$(2): \quad$ An order isomorphism from the ordered set $\struct {G, \preceq}$ to itself.

Also see

• Definition:Ordered Structure Automorphism

Linguistic Note

The word automorphism derives from the Greek morphe (μορφή) meaning form or structure, with the prefix iso- meaning equal.

Thus automorphism means self structure.

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