I'd say current american system does teach the "proof" in the sense of the OP not so much of the mathematical proof.
I agree one should not give a statement without justifying. But that's not the problem the OP is trying to address.
• What is OP? -trivial- ♀ (0 bytes) () 01/15/2015 postreply 13:41:15
• Original Post -SwiperTheFox- ♂ (0 bytes) () 01/15/2015 postreply 13:42:55