Arith.le_substl: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/poly1305/arith.bend as Arith
Lines 38-39 of bend-collections-laws-crypto@1.0.0.0/proofs/crypto/poly1305/arith.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/proofs/crypto/poly1305/arith.bend&start_line=38&end_line=39

import Base
import bend-collections-laws-crypto@1.0.0.0/proofs/lib/logic.bend as L

def le_substl(+a: Nat, +b: Nat, +c: Nat, +e: {a == b : Nat}, +h: {Nat.is_le(a, c) == True{} : Bool}) -> {Nat.is_le(b, c) == True{} : Bool}:
  L.subst(Nat, z => {Nat.is_le(z, c) == True{} : Bool}, a, b, e, h)

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=bend-collections-laws-crypto@1.0.0.0/proofs/lib/logic.bend&name=subst