In logic "and" means that two things must both be true for the statement to be true.
Only one or the other is not enough.
Example:
When A is true and B is true then A and B is true
When A is false and B is true then A and B is false
When A is true and B is false then A and B is false
When A is false and B is false then A and B is false
Example: can we buy chocolate at the shop?
• does the shop have chocolate?
• and do we have money?
If they do have chocolate and we do have money the result is true.
If they do not have chocolate and we do have money the result is false.
If they do have chocolate and we do not have money the result is false.
If they do not have chocolate and we do not have money the result is false.