to establish · to set up · to be tenable · to hold water

There are some cases where the rule does not hold good.

Officials from government and industry are also starting to recognize the potential of the Methane Capture Project. The U.S. Department of Agriculture is funding experimental on-farm sites in Mississippi and several other states. Some large poultry processors are launching renewable energy divisions to power their feed mills. And a fuel company is investigating the possibility of pumping chicken-waste methane instead of natural gas through its pipeline, and to use it to power some of the generators along the way.

He was still in his teens when he founded a company.

This formula is valid for all complex numbers z with a real part greater than zero.