def wrapping_shr
bend-collections-laws-math@1.0.0.0 · proofs/math/typed/fix32.bend:203
import bend-collections-laws-math@1.0.0.0/proofs/math/typed/fix32.bend as Fix32
import Base
import bend-collections-laws-math@1.0.0.0/spec/lib/common.bend as C
import bend-collections-laws-math@1.0.0.0/spec/math/generic.bend as SG
import bend-collections-laws-math@1.0.0.0/spec/math/fixed.bend as SF
import bend-collections-laws-math@1.0.0.0/src/math/fixed.bend as F
import bend-collections-laws-math@1.0.0.0/proofs/math/typed/shrn.bend as SHN
203def wrapping_shr(+a: U32, +s: U32) -> SF.WrappingShr.value(~U32, ~SG.u32_val, ~F.u32_wrapping_shr, 32n, a, s):
204 %Equal.sym(Nat, U32.to_nat(U32.and(s, 31)), Nat.mod(vs(s), 32n), am(s)) : {SG.u32_val(U32.shrn(a, _)) == C.high(Nat.mod(vs(s), 32n), SG.u32_val(a)) : Nat}
205 SHN.shrn_high(a, Nat.mod(vs(s), 32n))