Minimalism

HELLO!
In the 1957b reading we learned that artist such as Reinhardt imposed the idea that his work was "...the last painting which anyone can make" that every painting was the "ultimate" work of its kind. What is it that triggered that idea. Why is every one of his painting that last one of a progressive series?

In the 1958 reading "A constant negation of impulses" artist Jasper Johns opposes the idea that abstract art needs to be only of forms and colors and not recognizable objects. Johns starts his own type of Abstract Impressionism by recourse to everyday cultural signs. Do you really think that his piece Flag was a abstract painting or just a painting of a flag.

And finally...just another extra question :D
Is architecture and three-dimensional art completely opposites? As LeWitt insited....?

See you all later!
Angela R.