Lecture notes proposed corrections

[luckyNik]

Lecture 6, Introduction to ZKP

Step 2 doesn't make sense, probably should be something like "sends x_b".

Should be "after".

Lecture 7, Introduction to SNARKs. Arithmetic Circuits. R1CS

Neither V_2 nor V_3 are valid vector spaces because they don't contain the zero vector and are not closed under addition.

Lecture 14, Bulletproofs

Forgot the "x".

Same problem.

Grammar corrections.

Fourth rows of matrices A and B do not correspond to Constraint 4. Should be (b, a, 0, 0, 1, 0) for A and (1, 0, 0, 0, 0, 0) for B instead.