symmetriesPass commented out because it's too slow

	                    const VectorSizeType& free,

	                    const TensorSrepType& tensorSrep) const

	{

		assert(symmLocal_);

		SizeType ntensors = tensorSrep.size();

		for (SizeType i = 0; i < ntensors; ++i) {

			// tensor r (root tensor) has no out legs, so different symmetry

			// other tensors might have different symmetry also

			// Therefore, symmetry as implemented only applies to u and w and h

			unsigned char name = tensorSrep(i).fullName()[0];

			if (name != 'u' && name != 'w' && name != 'h')

				continue;

			if (!symmetriesPass(tensorSrep(i),summed,free))

				return false;

		}

//		assert(symmLocal_);

//		SizeType ntensors = tensorSrep.size();

//		for (SizeType i = 0; i < ntensors; ++i) {

//			// tensor r (root tensor) has no out legs, so different symmetry

//			// other tensors might have different symmetry also

//			// Therefore, symmetry as implemented only applies to u and w and h

//			unsigned char name = tensorSrep(i).fullName()[0];

//			if (name != 'u' && name != 'w' && name != 'h')

//				continue;

//			if (!symmetriesPass(tensorSrep(i),summed,free))

//				return false;

//		}

		return true;

	}