def offset_lt
import stelliferous@0.0.2.0/proofs/nat_order.bend as NatOrderimport Base
146def offset_lt(+offset: Nat,+left: Nat,+right: Nat,ordered: {Nat.is_lt(left,right) == True{} : Bool}) ->
147 {Nat.is_lt(Nat.add(offset,left),Nat.add(offset,right)) == True{} : Bool}:
148 match offset:
149 case 0n: ordered
150 case 1n+rest: offset_lt(rest,left,right,ordered)