(of actions or states) slightly short of or not quite accomplished; all but; "the job is (just) about done"; "the baby was almost asleep when the alarm sounded"; "we''re almost finished"; "the car all but ran her down"; "he nearly fainted"; "talked for nigh onto 2 hours"; "the recording is well-nigh perfect"; "virtually all the parties signed the contract"; "I was near exhausted by the run"; "most everyone agrees" 同義詞:about, almost, most, nearly, near, nigh, well-nigh, about, almost, most, nearly, near, nigh, well-nigh,
in essence or effect but not in fact; "the strike virtually paralyzed the city"; "I''m virtually broke"
(of actions or states) slightly short of or not quite accomplished; all but; "the job is (just) about done"; "the baby was almost asleep when the alarm sounded"; "we''re almost finished"; "the car all but ran her down"; "he nearly fainted"; "talked for nigh onto 2 hours"; "the recording is well-nigh perfect"; "virtually all the parties signed the contract"; "I was near exhausted by the run"; "most everyone agrees" 同義詞:about, almost, most, nearly, near, nigh, well-nigh, about, almost, most, nearly, near, nigh, well-nigh,
in essence or effect but not in fact; "the strike virtually paralyzed the city"; "I''m virtually broke"
百科解釋
Common uses for this would be when P is abelian, nilpotent, solvable or free. For example, virtually solvable groups are one of the two alternatives in the Tits alternative, while Gromov's theorem states that the finitely generated groups with polynomial growth are precisely the finitely generated virtually nilpotent groups.