a²+b²=c² is mathematical Theorem (0) Pythagoras
Proof
0²+0²=0² = 0²=0²=0=0.
=>
E²=(pC)²+(mC²)² is a universal Theorem (1) Einstein
Proof 0²+1²=1² = 1²=1²=1=1.
The sum of two cubes is never a prime number p >2 or p³
Proof
a³+b³= (a+b)(a²-ab+b²)
=>
z³=(z-1)(z²+z)+z => is not x³+y³=(x+y)(x²-xy+y²)
M_B_S