Question

Is it not true? If + is a friend and – is an enemy.
1. Your friend’s friend is your friend.
2. Your friend’s enemy is your enemy.
3. Your enemy’s friend is your enemy.
4. Your enemy’s enemy is your friend.

Answer 1

Yeah.......1) +,+=+,,,,,,,2)+,- =-,,,,,,3)-,+= -,,,,,,,,4) -,- = +.....