The question is how to type such cups and caps:
1 Answer
Inline equations (try to) respect line spacing, and shift under and over material to the side, make e.g. fractions smaller, ...
If you have high material, better write it into a display. Less cramped means better legibility. And that is what you should strive for in the first line.
$\bigcap\limits_{i=1}^{m} G_ii$,$\bigcup\limits_{i=1}^{\infty} G_i$?