I’m using: SWI-Prolog version 8 I want the code to: Add element one by one dynamically to an initially empty list recursively But what I’m getting is: In my response i have just the last element My code looks like this: addelement(E,List,[E|List]). doCallProve(P,0,PResult). doCallP(P…

Can you give us the input, the expected output and I suspect you are getting an error, so the error you are getting.

I have no error it is I can not add in an empty list at the start the result of the call (P, R) that I store in R I would like to each call put the R in a list

Since I don’t know how to construct the particular P and R for your code, here is something that I hope is similar enough to your need that will help. sum_list([H|T],R) :- sum_list(T,R0), plus(H,R0,R). sum_list([],0). Examples ?- sum_list([],R). R = 0. ?- sum_list([1],R). R = 1. ?- sum_…

Please show how you load and run your code, what you expect to see, and what you get instead. Explain how what you expect is different from what you get. When you find a moment, you might want to check out this very nice article: “How to create a Minimal, Reproducible example” . Obviously we are no…

Thanks for your proposal , when I run the program I print in the console the result of the call(P,R), R is a array it’s looks like : [xx(x(yy)),xx(yy),xx(yy),nott((yy)),tt(yy),tt(yy),z3(yy)] Now I want to put the R in a List for every execution. If you see my code I have a counter N. We execute c…

This is too difficult to understand, sorry. Maybe someone else can help.

addelement(E,List,[E|List]). doCallProve(Prove,0,ProveResult). doCallProve(P,N,PResult):- call(P,D), addelement(D,[],PResult), printDelta(D), doCallProve(P,N1,PResult), N is N1 + 1. I doCallProve in another Predicate I gave the value of P for example P value = prove([accept(ca…

[image] kassepro: I don’t need to sum the elements That was understood. :slightly_smiling_face: As Boris has noted ( How to create a Minimal, Reproducible Example ) and I have noted ( Minimal and reproducible working examples ), would help us. We do want to help but don’t want to be doing all …

Does this help? data(1,['Monday','Tuesday','Wednesday']). data(2,['Red','Orange','Yellow']). data(3,[true,false]). doCallData(Prop, N, Result) :- length(Result, N), maplist(Prop, Result). e.g. ?- doCallData(data(2),3,Result). Result = [['Red', 'Orange', 'Yellow'], ['Red', 'Orange', 'Yellow…

Thank you this is the principle in fact the result is what I would like to know the data comes from the response of the call in my case in the variable D and initially the list is empty

Add elements dynamically to an initially empty list recursively

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Add elements dynamically to an initially empty list recursively

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