Sigma: type of Base
Import: import Base
Lines 25-26 of Base/base.bend: https://jend.leeeet.dev/read.txt?path=Base/base.bend&start_line=25&end_line=26

import Base

type Sigma<a, b, -A: Kind(a), -B: @-x: A -> Kind(b)> is Kind(a <&> b):
  Tuple{fst: A, snd: B(fst)}

Uses (0):