返回 NPA
声明
metric_ball_intro
Mathlib.Topology.Metric.Basic
包
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 (X : Sort u), forall (R : Sort v), forall (dist : forall (a : X), forall (b : X), R), forall (lt : forall (a : R), forall (b : R), Prop), forall (center : X), forall (radius : R), forall (x : X), forall (h : lt (dist center x) radius), @MetricBall.{u,v} X R dist lt center radius x证明项
fun X => fun R => fun dist => fun lt => fun center => fun radius => fun x => fun h => h