NatExtrema.minimum_left: def of stelliferous@0.0.2.0
Import: import stelliferous@0.0.2.0/proofs/nat_extrema.bend as NatExtrema
Lines 38-42 of stelliferous@0.0.2.0/proofs/nat_extrema.bend: https://jend.leeeet.dev/read.txt?path=stelliferous@0.0.2.0/proofs/nat_extrema.bend&start_line=38&end_line=42

import Base

def minimum_left(+left: Nat,+right: Nat) -> {Nat.is_le(Nat.min(left,right),left) == True{} : Bool}:
  match left right:
    case 0n right: {==}
    case 1n+left 0n: {==}
    case 1n+left 1n+right: minimum_left(left,right)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_le
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.min