返回 NPA

声明

eq_of_square_eq_square_nonneg

Mathlib.Algebra.OrderedField

2

模块

63

定理

750

声明

1016

非可信 sidecar

源文本和展示 overlay 属于展示元数据。可信证据是签名证书和 checker 结果。

陈述

forall (a : RingElem), forall (b : RingElem), forall (ha : le zero a), forall (hb : le zero b), forall (hsq : @Eq.{1} RingElem (sq a) (sq b)), @Eq.{1} RingElem a b

证明项

fun a => fun b => fun ha => fun hb => fun hsq => @RingElem.rec.{0} (fun (x : RingElem) => @Eq.{1} RingElem x b) (@RingElem.rec.{0} (fun (y : RingElem) => @Eq.{1} RingElem RingElem.unit y) (@Eq.refl.{1} RingElem RingElem.unit) b) a

常量