Material Implication
If you Bless me then I will let you go= Don`t Bless me OR Go
If you Bless me then I will let you go= Don`t Bless me OR Go
Whoever spends 15 years in kindergardten is not to be believed The Teacher has spent 15 years in kindergarten Therefore,
People with beards=people without beards, with beards = [ (people with beards implies people without beards, with beards) and (people