law size_node_eq
import lawful-arrays@0.1.0.0/proof_shape.bend as ProofShapeimport Base
14law size_node_eq:
15 for -T: Type
16 for -xs: Array<T>
17 for -ys: Array<T>
18 for -b: Array<T>
19 for -n: U32
20 for e: {Array.size(T, xs) == (b, n) : Array<T> & U32}
21 {Array.size(T, ANode{xs, ys}) == (ANode{b, ys}, U32.shl(n)) : Array<T> & U32}