def vb_k

bend-collections-laws-crypto@1.0.0.0 · proofs/crypto/argon2/words.bend:17

import Base
import bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend as C
import bend-collections-laws-crypto@1.0.0.0/proofs/math/typed/u32.bend as U32P
import bend-collections-laws-crypto@1.0.0.0/proofs/math/typed/width.bend as WW

17def vb_k(+k: Nat, +hk: {k == 32n : Nat}, +x: U32) -> {C.fits(k, v(x)) == True{} : Bool}:
18  %Equal.sym(Bool, C.fits(k, v(x)), Nat.is_lt(v(x), C.pow2(k)), WW.fits_lt(k, v(x))) : {_ == True{} : Bool}
19  U32P.val_lt(1n, {==}, k, hk, x)