Order_of_Squares_in_Ordered_Ring_v3
Provedalgebraordered-ringproofwikisquares
Let be an ordered ring whose zero is and whose unity is . Let such that . Then When is one of the standard sets of numbers, that is , then this translates into If are positive then .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem Order_of_Squares_in_Ordered_Ring_v3 (a b : ℝ) (ha : 0 ≤ a) (hb : 0 ≤ b) : a ≤ b ↔ a ^ 2 ≤ b ^ 2 := by sorry
Source