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agdaproofs/Groups/Orders/Archimedean.agda
2020-04-18 17:47:27 +01:00

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{-# OPTIONS --safe --warning=error --without-K #-}
open import Numbers.Naturals.Definition
open import LogicalFormulae
open import Groups.Definition
open import Groups.Orders.Partial.Definition
open import Setoids.Orders.Partial.Definition
open import Setoids.Setoids
open import Agda.Primitive using (Level; lzero; lsuc; _⊔_)
module Groups.Orders.Archimedean {a b : _} {A : Set a} {S : Setoid {a} {b} A} {_+_ : A A A} {G : Group S _+_} {c : _} {_<_ : A A Set c} {pOrder : SetoidPartialOrder S _<_} (p : PartiallyOrderedGroup G pOrder) where
open Setoid S
open import Groups.Cyclic.Definition G
open Group G
Archimedean : Set (a c)
Archimedean = (x y : A) (0G < x) (0G < y) Sg (λ n y < (positiveEltPower x n))