1 files changed, 0 insertions, 35 deletions
diff --git a/polymatrix/expression/mixins/traceexprmixin.py b/polymatrix/expression/mixins/traceexprmixin.py
deleted file mode 100644
index fa46967..0000000
--- a/polymatrix/expression/mixins/traceexprmixin.py
+++ /dev/null
@@ -1,35 +0,0 @@
-import abc
-import dataclass_abc
-
-from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
-from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
-
-class TraceExprMixin(ExpressionBaseMixin):
-    @property
-    @abc.abstractclassmethod
-    def underlying(self) -> ExpressionBaseMixin:
-        ...
-
-    # overwrites abstract method of `ExpressionBaseMixin`
-    def apply(
-        self, 
-        state: ExpressionStateMixin,
-    ) -> tuple[ExpressionStateMixin, PolyMatrixMixin]:
-
-        state, underlying = self.underlying.apply(state)
-
-        assert underlying.shape[0] == underlying.shape[1], f'{underlying.shape=}'
-
-        @dataclass_abc.dataclass_abc(frozen=True)
-        class TracePolyMatrix(PolyMatrixMixin):
-            underlying: PolyMatrixMixin
-            shape: tuple[int, int]
-
-            def get_poly(self, row: int, _) -> dict[tuple[int, ...], float]:
-                return self.underlying.get_poly(row, row)
-
-        return state, TracePolyMatrix(
-            underlying=underlying,
-            shape=(underlying.shape[0], 1),
-        )
-\ No newline at end of file