How do you do negation? For example, today is Friday. How do you negate that?

Question

hero · Answer

Today is NOT Friday

hero · Answer

You're really a newbie at this.

lgbasallote · Answer

yes i am. 

so you just put a NOT?

hero · Answer

Pretty much. That's the only way to negate a statement

lgbasallote · Answer

how do you know where to put the NOT?

hero · Answer

Well, I usually put it as close to the verb as possible. Particularly, in this case, "is" means "equal" . And "is not" is the same thing as "not equal"

lgbasallote · Answer

so.. to negate $$2 + 1 = 3$$
you say $$2 + 1 \ne 3$$
do i get the concept right?

hero · Answer

Yup

lgbasallote · Answer

what about if you have a compound predicate like

The summer in Maine is hot and sunny

do you say

the summer in Maine is NOT hot and sunny

or

the summer in Maine is NEITHER hot NOR sunny

??

anonymous · Answer

to negate a statement means to make it negative...for example:
Positive: I am happy
Negative: I am NOT happy

mathematically...
Positive: $$7+x=2$$Negative:$$7+x\neq2$$

hero · Answer

The very last one would be more appropriate @lgbasallote

lgbasallote · Answer

yes. i thought so. thanks

lgbasallote · Answer

wait... my book says it should be "The summer in Maine is not hot or it is not sunny"

so that means you replace "and" with "or" in negation?

hero · Answer

The book says the same thing you did. It doesn't have to be 100% word for word

hero · Answer

Yes, you replace and with or in negation