问题
填空题
命题p:“∃x∈R,使得x2+x+1<0”,则¬p:______.
答案
∵命题p:“∃x∈R,使得x2+x+1<0”是特称命题
∴¬p:∀x∈R,均有x2+x+1≥0
故答案为:∀x∈R,均有x2+x+1≥0.
命题p:“∃x∈R,使得x2+x+1<0”,则¬p:______.
∵命题p:“∃x∈R,使得x2+x+1<0”是特称命题
∴¬p:∀x∈R,均有x2+x+1≥0
故答案为:∀x∈R,均有x2+x+1≥0.