Post by Eugene 2.0 on Mar 4, 2021 8:22:22 GMT
Usually a Cartesian Product of two sets has this form:
A × B = <a, b>, where a є A, b є B.
And in particular:
{x, y} × {w, z} = {<x, w>, <x, z>, <y, w>, <y, z>}.
So, is there a difference between Cartesian Product of
{a, b} × {c, d} = Z
and
{a, b} × {c, {d}} = Z'?
Do Z equal to Z'?
And also, what is the difference between multiplying
{ø} × {ø} = J
and
ø × ø = J?
Do J equal to J'?
A × B = <a, b>, where a є A, b є B.
And in particular:
{x, y} × {w, z} = {<x, w>, <x, z>, <y, w>, <y, z>}.
So, is there a difference between Cartesian Product of
{a, b} × {c, d} = Z
and
{a, b} × {c, {d}} = Z'?
Do Z equal to Z'?
And also, what is the difference between multiplying
{ø} × {ø} = J
and
ø × ø = J?
Do J equal to J'?