PLANNERA language for writing theorem provers by Carl Hewitt <[email protected]> MIT 1967. Never fully implemented. CONNIVER was an outgrowth of PLANNER and microPLANNER a subset. PLASMA is a PLANNER-like system modelled on Actors. See also POPLER, QLISP, Scheme. ["PLANNER: A Language for Proving Theorems in Robots", Carl Hewitt, Proc IJCAI-69, Wash DC, May 1969].