The sentence was: We are not men. And I'm not understand exactly what means here the "degli" (Noi non siamo degli uomini.). I wrote this: Noi non siamo gli uomini. Why was this wrong?
it was rong becouse you put " we are not the men" when you put gli its like you're using l'. So it would be gli uomini "the men" l'uomo "the man"
Hope this answers your question. =P
"No" would be the same as it is in english. If you answer "No" to a question for example. But "non" is when you want to make something negative. Or in english "not". So "They do NOT have a cat" = "Loro NON hanno un gatto"