Yes to both, obviously.

The usual guideline is to pretend that INF is a very large finite number?  The whole idea is that a bunch of things that are approximately true about large numbers become exactly true about INF.

Yes to both, obviously.

The usual guideline for answering questions like that is to pretend that INF is a very large finite number?  The whole idea is that a bunch of things that are approximately true about large numbers become exactly true about INF.

Yes to both, obviously, though 1/(INF + 1) = 1/INF.

The usual guideline for answering questions like that is to pretend that INF is a very large finite number?  The whole idea is that a bunch of things that are approximately true about large numbers become exactly true about INF.

Yes to both, obviously, though (INF-1)/INF = INF/INF, or 1/(INF + 1) = 1/INF.

The usual guideline for answering questions like that is to pretend that INF is a very large finite number?  The whole idea is that a bunch of things that are approximately true about large numbers become exactly true about INF.

Yes to both, obviously.  Though (INF-1)/INF = INF/INF, or 1/(INF + 1) = 1/INF.

The usual guideline for answering questions like that is to pretend that INF is a very large finite number?  The whole idea is that a bunch of things that are approximately true about large numbers become exactly true about INF.

Yes to both, obviously.

The usual guideline for answering questions like that is to pretend that INF is a very large finite number?  The whole idea is that a bunch of things that are approximately true about large numbers become exactly true about INF.