remark let's try quote  a little bit kramer
quote pop
quote 2
show
remark test also exchange kramer
exch
show

pop
pop

remark 
duplication test kramer
3
dup
count show
pop
add 
show

clear

remark test other cases for boolean operations
		true and false, false or true
true and true
kramer
true  false 
and show
true or show
true and show

quote A
quote B
 false ifelse
show

clear

remark try some if operations kramer
3 4 true if false if 
float show

pop
remark try string equality once more kramer
quote testing quote testing equal show

remark comparison of different types, should exit kramer
4 lessthan