Sergio, 1 + 1 =3D 2 does not need a proof, IT IS A DEFINITION. my $0.02, Jean-Paul AC9GH > On May 30, 2015, at 7:30 PM, smplx wrote: >=20 >=20 >=20 > On Fri, 29 May 2015, RussellMc wrote: >=20 >> Take 113355 (Remembered easily - 11 33 55 ) >>=20 >> Then 355/113 ~=3D Pi >>=20 >> (355/113) / Pi <=3D 1.0000001 >>=20 >> Comes in useful over a lifetime. >>=20 >> Alternatively - just remember 3.14159265358979 >> More than more than good enough for 'engineering' :-) >=20 > I've discovered a new special number Q+' >=20 > In years to come mathematicians will uncover incredible properties of thi= s=20 > new number such as: >=20 > (1) Q+' + Q+' =3D Q+' * Q+' >=20 > and >=20 > (2) Q+' - Q+' =3D Q+' / Q+' >=20 > then they will forget (1) and (2) and be completely awestruck when they=20 > accidently discover that: >=20 > (3) Q+' * Q+' =3D Q+' + Q+' >=20 > and >=20 > (4) Q+' / Q+' =3D Q+' - Q+' >=20 > then many years later still they will discover that I discovered Q+' > and I will be hailed a genius >=20 > Look the point is: we have invented maths through observation of the=20 > physical world, then when we see that what we have invented corresponds t= o=20 > the physical world we call that proof that maths is real. Maths is a magi= c=20 > trick performed with a specially crafted deck of cards. >=20 > Can anyone really show that 1+1 =3D 2 except as a concept on paper? >=20 > Regards > Sergio Masci > --=20 > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .