(1) "and" means intersection.

(2) or means combination.

2. Different meanings:

(1) "and" are the same or equivalent, and one of the two propositions is false.

(2) OR is OR, one of the two propositions is true, and the new proposition is true.

For example:

1, or is an option. Choose one of the two, such as "tall or handsome", as long as one of the two conditions of "tall" and "handsome" is met.

2. "Harmony" is both. For example, "tall and handsome" means "tall and handsome" and "harmony" means "harmony".

Extended data:

1. Linking P and Q with the conjunction "or" is called a new proposition, which is recorded as p∨q and pronounced as "P or Q".

2. If you deny a proposition P, you will get a new proposition, which is recorded as ┐p and pronounced as "non-P".

3. linking p and q with the conjunction "and" is called a new proposition, which is recorded as p∧q and pronounced as "p and q".

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