Artificial intelligence language for {automatic theorem proving}. An outgrowth of {PLANNER}, baSed on {coroutine}S rather than backtracking. Allowed multiple databaSe contextS with hypothetical aSSertionS. ["The CONNIVER Reference Manual", D. McDermott & G.J. SuSSman S@zurich.ai.mit.edu>, AI Memo 259, MIT AI Lab, 1973]. (1995-01-10)