theorem Th29: :: ANPROJ_8:35

for p, q, r being Point of (TOP-REAL 3)
for M being Matrix of 3,F_Real st M = <*<*(p `1),(p `2),(p `3)*>,<*(q `1),(q `2),(q `3)*>,<*(r `1),(r `2),(r `3)*>*> holds
|{p,q,r}| = Det M