def older_ne
import bendtorch-core@0.1.0.0/src/autograd/tensor_chain_PROOF.bend as TensorChainPROOFimport Base
490# A node with older nodes below it and extra + 1 newer ones above it never has
491# the id of the target.
492def older_ne(+older: Nat, -extra: Nat) -> {False{} == Nat.is_eq(Nat.add(older, 1n+extra), older) : Bool}:
493 match older:
494 case 0n:
495 {==}
496 case 1n+rest:
497 older_ne(rest, extra)