I would like if mentors give suggestions about the course of action I 
should take and the improvements I should make in the proposal. The project 
is huge and for the past few days, I have been going to and from between 
core modules and assumptions module. I have some questions :

   - Why do we need to have two different sets of assumptions?

This is ambiguous. Just Consider

 

 

>>> oo.is_real
True
>>> ask(Q.real(oo))
False
>>>


   - Also since the new assumptions are sometimes calling the old 
   assumptions, the above can create more difficulties. Isn't the idea for new 
   assumptions has been to scrape off the old assumptions? 

My present plan for my course of actions is:

   - Improve SAT solvers speed:- I am currently researching for SAT solving 
   algorithms and since SymPy is a closed system (i.e. the Inference rules 
   would be fixed) we can have a pre-compiled Inference Network ( or such a 
   Data structure) which would provide speed to SymPy's SAT solvers.
   - Old assumptions would call the new assumptions.

But old and new assumptions differ. Should they be left as they are? Please 
suggest.

Thanks.

On Monday, March 11, 2019 at 11:37:43 AM UTC+5:30, [email protected] wrote:
>
> Hello everyone,
>
> I am Shubham Kumar Jha, a pre-final year Undergraduate student in C.S.E. 
> from NIT Agartala (India). I am participating in GSoC 2019 under SymPy. I 
> went through the ideas page of GSoC 2019 and found the Assumptions project 
> to be both appealing and exciting to me. I want to work on it. I have gone 
> through much of the literature on Assumptions and still reading them. The 
> project is huge and I still need to make a clear note of the amount of work 
> done and not done. But following are some tasks I would want to work on:
>
>    - *Add support for Relational expressions: *Currently, Assumptions 
>    doesn't support relational expressions. I would extend the capabilities of 
>    Assumptions. It would also help in other parts of the project.
>    - *Convert handlers to their relational equivalents: *While working on 
>    some handlers I found handlers in particular are not very powerful or 
>    expandable. With added support for Relational expressions, we can convert 
>    handlers to their relational equivalents. In this way, we can save much of 
>    the predicates since inferences on Relationals would be enough for most of 
>    them. Also, it would make them easily expandable.
>    - *Increase the capabilities of SAT solver: *Aaron Meurer(@asmeurer) 
>    has already done so much work in it (which I still need to go through). I 
>    would try to extend its capabilities and speed it up. Currently, I am 
>    having Logical Inference as one of my subjects this semester which heavily 
>    utilizes CLIPS. I would look into CLIPS or other better alternatives if I 
>    can mimic their functionalities.
>    - *Work on global assumptions: *As suggested by Sudhanshu 
>    Mishra(@debugger22) we can add assumptions into the global scope with 
> their 
>    scope numbers and purge them during garbage collection. I support the 
>    approach with context manager but I think the addition of this capability 
>    will also be good.
>
> I am still going through the works done in Assumptions and would draft a 
> refined proposal over this and the suggestions I receive. Also, I would 
> create the timeline accordingly. I know the project is very huge therefore 
> I would like if some mentors can guide me into specifics that heavily 
> require work now.
>
> I have no commitments for this summer and I am able to devote my full time 
> to SymPy. I have been a part of the community for the past 3-4 months and I 
> understand SymPy's codebase pretty well. Hence, I don't need time to get 
> familiarize with it. Also, before the beginning of the coding period, I 
> would have gone through Assumptions mechanism. I would start working on my 
> project from the very beginning. Since the project is huge my main target 
> would be to bring the assumptions upfront so more work would be done in 
> this field. Also, I won't stop working after GSoC. I will complete whatever 
> I would start.
>
> Thank You,
> Shubham Kumar Jha
> @ShubhamKJha <https://github.com/ShubhamKJha>
>

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