[lemma=hold] [□]
[lemma=hold] [!□]
[lemma=hold] [□ | □]
The result holds even if no nondeterministic choice operator is allowed . While people might now hold stocks through their new personal accounts or collectively through the Social Security trust fund , their other stock holdings in 401 ( k ) s , IRAs , and the like might be lower as bonds take a greater role in their portfolios . For impoverished communities , " mining holds out a promise of cash earnings , with the additional prospect that - a bit like holding a lottery ticket - there could be a large windfall sometime in the future as long as one remains in the game . BCN will hold quarterly meetings of the Center Developers . Ukraine has won independence , and the government of President Leonid Kravchuk holds out the promise of a new political and economic order . In contrast , adult stem cell research holds out nearly equal promise while circumventing the enormous social , ethical , and political issues raised by the use of human embryos for research . The field of stem cell research holds out considerable promise for the treatment of disease and injury , but this promise is not unlimited .