def kept_value

bendtorch-core@0.1.0.0 · src/tensor/contracts/matmul_proof.bend:156

import Base
import bendtorch-core@0.1.0.0/src/shape/core.bend as Shape
import bendtorch-core@0.1.0.0/src/storage/LAWS.bend as StorageLaws
import bendtorch-core@0.1.0.0/src/tensor/core.bend as Core
import bendtorch-core@0.1.0.0/src/tensor/lifecycle.bend as Lifecycle
import bendtorch-core@0.1.0.0/src/tensor/contracts/replayed.bend as Replayed
import bendtorch-core@0.1.0.0/src/tensor/contracts/pointwise_proof.bend as PointwiseProof

156def kept_value(+shape: Shape.Shape, +fill: F32, +ops: List<&2, StorageLaws.Op>, +history: List<&2, StorageLaws.Op>,
157  -fits: {Lifecycle.logical_length(Replayed.storage(shape, fill, history)) == Shape.logical_numel(Shape.dimensions(shape)) : Nat},
158  +index: U32, inside: {Nat.is_lt(U32.to_nat(index), Shape.logical_numel(Shape.dimensions(shape))) == True{} : Bool},
159  same: {Replayed.value(shape, fill, history, index) == Replayed.value(shape, fill, ops, index) : F32}) ->
160  {Core.dynamic_read_value(Core.read_dynamic(Core.Packed{shape, Core.TTensor{Replayed.storage(shape, fill, history), fits}}, index)) ==
161    Some{Replayed.value(shape, fill, ops, index)} : Maybe<&2, F32>}:
162  Equal.trans(Maybe<&2, F32>,
163    Core.dynamic_read_value(Core.read_dynamic(Core.Packed{shape, Core.TTensor{Replayed.storage(shape, fill, history), fits}}, index)),
164    Some{Replayed.value(shape, fill, history, index)}, Some{Replayed.value(shape, fill, ops, index)},
165    PointwiseProof.replayed_point(shape, fill, history, fits, index, inside),
166    Equal.cong(F32, Maybe<&2, F32>, word => Some{word}, Replayed.value(shape, fill, history, index), Replayed.value(shape, fill, ops, index), same))