def eta
import bendtorch-core@0.1.0.0/src/tensor/batched_matmul_PROOF.bend as BatchedMatmulPROOFimport Base
228def eta(-X: Type, -Y: Type, pair: X & Y) -> {pair == (Pair.fst(X, Y, pair), Pair.snd(X, Y, pair)) : X & Y}:
229 (x, y) = pair
230 {==}
import bendtorch-core@0.1.0.0/src/tensor/batched_matmul_PROOF.bend as BatchedMatmulPROOFimport Base
228def eta(-X: Type, -Y: Type, pair: X & Y) -> {pair == (Pair.fst(X, Y, pair), Pair.snd(X, Y, pair)) : X & Y}:
229 (x, y) = pair
230 {==}