Tensor.bc_eq: def of bendtorch@1.3.0.0
Import: import bendtorch@1.3.0.0/tensor.bend as Tensor
Lines 74-83 of bendtorch@1.3.0.0/tensor.bend: https://jend.leeeet.dev/read.txt?path=bendtorch@1.3.0.0/tensor.bend&start_line=74&end_line=83

import Base

# three shapes of one rank, axis by axis
def bc_eq(a: List<&2, Nat>, b: List<&2, Nat>, o: List<&2, Nat>) -> Bool:
  match a b o:
    case Nil{} Nil{} Nil{}:
      True{}
    case Con{+x, ra} Con{+y, rb} Con{+z, ro}:
      # bend-lint: disable-next bend-lint-rules/performance/eager_branch -- a shape predicate over a list of rank <= 4, once per operation; the types and LAWS.bend read its Bool form not-expected-because: a match would change the definition the proofs reduce, for no measurable gain
      Bool.and(bc_dim(x, y, z), bc_eq(ra, rb, ro))
    case _ _ _:
      False{}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/tensor.bend&name=bc_dim