delta produces \Delta instead of \delta, so there is no way to get \delta. Is there a way to produce <= and >=? lt and gt become < and >, which is not so neces

delta produces \Delta instead of \delta, so there is no way to get \delta. Is there a way to produce <= and >=? lt and gt become < and >, which is not so necessary seeing that < and > work fine, but lte and gte do not become \lte or \gte. In the product prod example, there is nlogn in the source and logi in the rendering.