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-rw-r--r--src/Helium/Algebra/Ordered/StrictTotal/Properties/AbelianGroup.agda2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Helium/Algebra/Ordered/StrictTotal/Properties/AbelianGroup.agda b/src/Helium/Algebra/Ordered/StrictTotal/Properties/AbelianGroup.agda
index cad9714..aa37d59 100644
--- a/src/Helium/Algebra/Ordered/StrictTotal/Properties/AbelianGroup.agda
+++ b/src/Helium/Algebra/Ordered/StrictTotal/Properties/AbelianGroup.agda
@@ -63,9 +63,11 @@ open import Helium.Algebra.Ordered.StrictTotal.Properties.Group group public
; ⁻¹-anti-cancel-<; ⁻¹-anti-cancel-≤
+ ; x≈ε⇒x⁻¹≈ε
; x<ε⇒x⁻¹>ε; x>ε⇒x⁻¹<ε
; x≤ε⇒x⁻¹≥ε; x≥ε⇒x⁻¹≤ε
+ ; x⁻¹≈ε⇒x≈ε
; x⁻¹<ε⇒x>ε; x⁻¹>ε⇒x<ε
; x⁻¹≤ε⇒x≥ε; x⁻¹≥ε⇒x≤ε