While learning about the Yoneda lemma, I came across the following encoding of the underlying natural isomorphism in Haskell: I tried to simplify t ...

I have the following code, which seems to be working. Is there a way I can add a date, timestamp to the type definition? If so, how would reference th ...

In GHCi, the kind of FUN is displayed like this: At first, I thought this was a roundabout way of saying but it turns out Template Haskell has a ...

Why is my forall loop not working to apply an constraint to all the individual values stored in my variable. For eg: if there are 100 values stored un ...

This is valid syntax in GHC 9. What do the {..} mean (as distinct from (..) which GHC 8.10 requires here)? ign :: forall {f :: Type -> Type} {p}. ...

I learned that you can redefine ContT from transformers such that the r type parameter is made implicit (and may be specified explicitly using TypeApp ...

I'm modelling a routing problem in CPLEX opl. I am struggling to implement a certain constraint in CPLEX, which sums a decision variable X over a set ...

I want to check, if a list L of tuples (x1,y1) has the function property: I tried to solve it with the following predicate: the problem of that ...

So I have a generic vector: 1:vec: Vector[Vector[T]] Now I wanna use the require and forall to check if the length of each row is the same. This is ho ...

I am new to PowerApps. I have a Share Point List with a set of coordinates for various locations. What I need to figure out is when a user with PowerA ...

Updated... Trying to inject a series of rows into a SharePoint List via PowerApps, but running across the fact that PowerApps seems to only have FORA ...

I've finished reading the Existential Types Wikibook, and it compares using forall with using lowercase letters for defining generic types. It then sa ...

This question builds on a previous question about forall clauses. I would like to limit the forall with a 'when' statement as shown below: (:durative ...

I am both using durative actions and trying to be able to clear a predicate over all elements of a certain type. See below. Is this possible? If so, d ...

I have the following plsql block t_mds_parents declared as And I get an exception ORA-00947: not enough values I really need to put the result ...

This question really is more generic, since while I was asking it I found out how to fix it in this particular case (even though I don't like it) but ...

If I have an array of names, how do I check if they all start with an upper case letter using forall (or something else functional)? that is wrong ...

I want to write a class like this: Here, c is a type restricted by C and this restriction will be used in func2. But this cannot be compiler. Type ...

I am a beginner in Haskell and I am taken aback by the undefined function's type signature. I expected something more simple, but I found this on Hac ...

Case of use First of all, I want to explain my case of use: I want to divide a field in different sectors and all plants should be analyzed by robots ...