diff --git a/src/libraries/System.ComponentModel.Composition/src/System/ComponentModel/Composition/CompositionException.cs b/src/libraries/System.ComponentModel.Composition/src/System/ComponentModel/Composition/CompositionException.cs
index 1a1409832d0103..869662cb489d82 100644
--- a/src/libraries/System.ComponentModel.Composition/src/System/ComponentModel/Composition/CompositionException.cs
+++ b/src/libraries/System.ComponentModel.Composition/src/System/ComponentModel/Composition/CompositionException.cs
@@ -197,8 +197,7 @@ private static void WriteHeader(StringBuilder writer, int errorsCount, int pathC
                 // The composition produced a single composition error. The root cause is provided below.
                 writer.AppendFormat(
                      CultureInfo.CurrentCulture,
-                     SR.CompositionException_SingleErrorWithSinglePath,
-                     pathCount);
+                     SR.CompositionException_SingleErrorWithSinglePath);
             }
 
             writer.Append(' ');
diff --git a/src/libraries/System.Composition.TypedParts/src/System/Composition/TypedParts/ActivationFeatures/OnImportsSatisfiedFeature.cs b/src/libraries/System.Composition.TypedParts/src/System/Composition/TypedParts/ActivationFeatures/OnImportsSatisfiedFeature.cs
index 9b0e7f096b8d2b..87a4e4c5ae41d4 100644
--- a/src/libraries/System.Composition.TypedParts/src/System/Composition/TypedParts/ActivationFeatures/OnImportsSatisfiedFeature.cs
+++ b/src/libraries/System.Composition.TypedParts/src/System/Composition/TypedParts/ActivationFeatures/OnImportsSatisfiedFeature.cs
@@ -40,7 +40,7 @@ public override CompositeActivator RewriteActivator(
 
             foreach (var m in importsSatisfiedMethods)
             {
-                if (!(m.IsPublic || m.IsAssembly) | m.IsStatic || m.ReturnType != typeof(void) ||
+                if (!(m.IsPublic || m.IsAssembly) || m.IsStatic || m.ReturnType != typeof(void) ||
                     m.IsGenericMethodDefinition || m.GetParameters().Length != 0)
                 {
                     string message = SR.Format(SR.OnImportsSatisfiedFeature_AttributeError, partType, m.Name);
diff --git a/src/libraries/System.DirectoryServices/src/System/DirectoryServices/ActiveDirectory/DirectoryServer.cs b/src/libraries/System.DirectoryServices/src/System/DirectoryServices/ActiveDirectory/DirectoryServer.cs
index 6fcd05b49a38b4..4a5d463414f04b 100644
--- a/src/libraries/System.DirectoryServices/src/System/DirectoryServices/ActiveDirectory/DirectoryServer.cs
+++ b/src/libraries/System.DirectoryServices/src/System/DirectoryServices/ActiveDirectory/DirectoryServer.cs
@@ -360,10 +360,10 @@ internal unsafe IntPtr GetReplicationInfoHelper(IntPtr dsHandle, int type, int s
                         }
                         catch (COMException e)
                         {
-                            if (e.ErrorCode == unchecked((int)0x80072020) |          // dir_error on server side
+                            if (e.ErrorCode == unchecked((int)0x80072020) ||          // dir_error on server side
                                    e.ErrorCode == unchecked((int)0x80072030))           // object not exists
                                 throw new ArgumentException(SR.DSNoObject, "objectPath");
-                            else if (e.ErrorCode == unchecked((int)0x80005000) |          // bad path name
+                            else if (e.ErrorCode == unchecked((int)0x80005000) ||          // bad path name
                                    e.ErrorCode == unchecked((int)0x80072032)) // ERROR_DS_INVALID_DN_SYNTAX
                                 throw new ArgumentException(SR.DSInvalidPath, "objectPath");
                         }
diff --git a/src/libraries/System.Threading.Channels/src/System/Threading/Channels/BoundedChannel.cs b/src/libraries/System.Threading.Channels/src/System/Threading/Channels/BoundedChannel.cs
index ae45c1cfc071af..169c433e9cca7f 100644
--- a/src/libraries/System.Threading.Channels/src/System/Threading/Channels/BoundedChannel.cs
+++ b/src/libraries/System.Threading.Channels/src/System/Threading/Channels/BoundedChannel.cs
@@ -178,7 +178,7 @@ public override ValueTask<T> ReadAsync(CancellationToken cancellationToken)
                     // cancellation callback could end up running arbitrary code, including code that called back into the reader or
                     // writer and tried to take the same lock held by the thread running UnregisterCancellation... deadlock.  As such,
                     // we only allow synchronous continuations here if both a) the caller requested it and the token isn't cancelable.
-                    var reader = new AsyncOperation<T>(parent._runContinuationsAsynchronously | cancellationToken.CanBeCanceled, cancellationToken);
+                    var reader = new AsyncOperation<T>(parent._runContinuationsAsynchronously || cancellationToken.CanBeCanceled, cancellationToken);
                     parent._blockedReaders.EnqueueTail(reader);
                     return reader.ValueTaskOfT;
                 }
@@ -232,7 +232,7 @@ public override ValueTask<bool> WaitToReadAsync(CancellationToken cancellationTo
                     // cancellation callback could end up running arbitrary code, including code that called back into the reader or
                     // writer and tried to take the same lock held by the thread running UnregisterCancellation... deadlock.  As such,
                     // we only allow synchronous continuations here if both a) the caller requested it and the token isn't cancelable.
-                    var waiter = new AsyncOperation<bool>(parent._runContinuationsAsynchronously | cancellationToken.CanBeCanceled, cancellationToken);
+                    var waiter = new AsyncOperation<bool>(parent._runContinuationsAsynchronously || cancellationToken.CanBeCanceled, cancellationToken);
                     ChannelUtilities.QueueWaiter(ref _parent._waitingReadersTail, waiter);
                     return waiter.ValueTaskOfT;
                 }