Fixed issue 3538. Subs working in .n()
Fixed issue 3538. Subs working in .n()

liangjiaxing/sympy,ChristinaZografou/sympy,kevalds51/sympy,abhiii5459/sympy,Titan-C/sympy,atsao72/sympy,Vishluck/sympy,jamesblunt/sympy,sampadsaha5/sympy,moble/sympy,wyom/sympy,lidavidm/sympy,sampadsaha5/sympy,mcdaniel67/sympy,ga7g08/sympy,toolforger/sympy,pandeyadarsh/sympy,vipulroxx/sympy,sunny94/temp,mafiya69/sympy,VaibhavAgarwalVA/sympy,ahhda/sympy,liangjiaxing/sympy,jaimahajan1997/sympy,pandeyadarsh/sympy,sahilshekhawat/sympy,kumarkrishna/sympy,emon10005/sympy,saurabhjn76/sympy,vipulroxx/sympy,beni55/sympy,farhaanbukhsh/sympy,souravsingh/sympy,garvitr/sympy,kaushik94/sympy,ChristinaZografou/sympy,kumarkrishna/sympy,asm666/sympy,kaichogami/sympy,sahmed95/sympy,oliverlee/sympy,farhaanbukhsh/sympy,atreyv/sympy,hargup/sympy,bukzor/sympy,debugger22/sympy,rahuldan/sympy,kaichogami/sympy,ChristinaZografou/sympy,moble/sympy,atreyv/sympy,madan96/sympy,Davidjohnwilson/sympy,liangjiaxing/sympy,sunny94/temp,asm666/sympy,sunny94/temp,ga7g08/sympy,abhiii5459/sympy,yukoba/sympy,cswiercz/sympy,mcdaniel67/sympy,lidavidm/sympy,emon10005/sympy,amitjamadagni/sympy,MridulS/sympy,grevutiu-gabriel/sympy,saurabhjn76/sympy,emon10005/sympy,debugger22/sympy,atsao72/sympy,AkademieOlympia/sympy,garvitr/sympy,toolforger/sympy,mafiya69/sympy,wanglongqi/sympy,bukzor/sympy,jbbskinny/sympy,yashsharan/sympy,ahhda/sympy,beni55/sympy,Arafatk/sympy,chaffra/sympy,skidzo/sympy,Titan-C/sympy,MechCoder/sympy,lindsayad/sympy,moble/sympy,MridulS/sympy,skidzo/sympy,abloomston/sympy,madan96/sympy,postvakje/sympy,jbbskinny/sympy,ga7g08/sympy,mcdaniel67/sympy,Designist/sympy,Curious72/sympy,Vishluck/sympy,wanglongqi/sympy,sahilshekhawat/sympy,diofant/diofant,Mitchkoens/sympy,Curious72/sympy,oliverlee/sympy,lidavidm/sympy,Gadal/sympy,atsao72/sympy,sahmed95/sympy,VaibhavAgarwalVA/sympy,chaffra/sympy,aktech/sympy,kmacinnis/sympy,yukoba/sympy,sahmed95/sympy,VaibhavAgarwalVA/sympy,Davidjohnwilson/sympy,jamesblunt/sympy,hrashk/sympy,hrashk/sympy,skidzo/sympy,Gadal/sympy,MechCoder/sympy,shipci/sympy,oliverlee/sympy,drufat/sympy,sahilshekhawat/sympy,jaimahajan1997/sympy,Sumith1896/sympy,Mitchkoens/sympy,toolforger/sympy,Davidjohnwilson/sympy,rahuldan/sympy,aktech/sympy,meghana1995/sympy,Designist/sympy,Sumith1896/sympy,meghana1995/sympy,Vishluck/sympy,abhiii5459/sympy,shipci/sympy,Shaswat27/sympy,pandeyadarsh/sympy,beni55/sympy,Sumith1896/sympy,Mitchkoens/sympy,dqnykamp/sympy,shipci/sympy,AunShiLord/sympy,AkademieOlympia/sympy,bukzor/sympy,lindsayad/sympy,meghana1995/sympy,Gadal/sympy,farhaanbukhsh/sympy,Designist/sympy,vipulroxx/sympy,MridulS/sympy,jerli/sympy,lindsayad/sympy,souravsingh/sympy,jerli/sympy,maniteja123/sympy,wyom/sympy,jamesblunt/sympy,hargup/sympy,hrashk/sympy,cswiercz/sympy,postvakje/sympy,atreyv/sympy,kaushik94/sympy,skirpichev/omg,drufat/sympy,AunShiLord/sympy,Curious72/sympy,kmacinnis/sympy,grevutiu-gabriel/sympy,hargup/sympy,shikil/sympy,AkademieOlympia/sympy,yukoba/sympy,aktech/sympy,madan96/sympy,postvakje/sympy,pbrady/sympy,kevalds51/sympy,drufat/sympy,Shaswat27/sympy,jaimahajan1997/sympy,yashsharan/sympy,iamutkarshtiwari/sympy,asm666/sympy,Arafatk/sympy,amitjamadagni/sympy,souravsingh/sympy,shikil/sympy,maniteja123/sympy,debugger22/sympy,maniteja123/sympy,cccfran/sympy,pbrady/sympy,chaffra/sympy,kevalds51/sympy,grevutiu-gabriel/sympy,jbbskinny/sympy,MechCoder/sympy,iamutkarshtiwari/sympy,cswiercz/sympy,AunShiLord/sympy,mafiya69/sympy,dqnykamp/sympy,kmacinnis/sympy,cccfran/sympy,wyom/sympy,kaushik94/sympy,saurabhjn76/sympy,Shaswat27/sympy,rahuldan/sympy,wanglongqi/sympy,garvitr/sympy,yashsharan/sympy,sampadsaha5/sympy,abloomston/sympy,Titan-C/sympy,pbrady/sympy,cccfran/sympy,Arafatk/sympy,iamutkarshtiwari/sympy,dqnykamp/sympy,kaichogami/sympy,jerli/sympy,kumarkrishna/sympy,shikil/sympy,abloomston/sympy,ahhda/sympy