Add missing headers

Author: jeangud

FormalConjecturesForMathlib/Combinatorics/Additive/Coset.lean

@@ -1,3 +1,19 @@
+/-
+Copyright 2026 The Formal Conjectures Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-/
+
 import Mathlib
 
 noncomputable def maxCosetDim (K V : Type*) [DivisionRing K] [AddCommGroup V] [Module K V]

FormalConjecturesForMathlib/Data/ZMod/F2.lean

@@ -1,3 +1,19 @@
+/-
+Copyright 2026 The Formal Conjectures Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-/
+
 import Mathlib
 
 /-- The boolean hypercube $G = \mathbb{F}_2^n = (\mathbb{Z}/2\mathbb{Z})^n$. -/

FormalConjecturesTest/ForMathlib/Combinatorics/Additive/CosetTest.lean

@@ -1,3 +1,19 @@
+/-
+Copyright 2026 The Formal Conjectures Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-/
+
 import Mathlib
 import FormalConjecturesForMathlib.Combinatorics.Additive.Coset