如果想要在数学上彻底消除「无限」「无穷」的概念,需要改变哪些现有的理论、概念等相关问题呢? | 8k8 ph | Updated: 2024-07-19 01:56:25
KYIV - Several explosions were heard on Wednesday morning in the Ukrainian capital, as Russia launched missile attacks against the country.
The Kyiv city military administration said air defense is operating in the city.