Revert "Do not call equal() for all items"
Revert "Do not call equal() for all items"

This reverts commit 0edf1fe27f9b1ce25d63b6024db5e5d32070d24d.

golmansax/mathjs,golmansax/mathjs,mcanthony/mathjs,mefozzy/mathjs,mikberg/mathjs,josdejong/mathjs,rjbaucells/mathjs,jomachim/mathjs,FSMaxB/mathjs,mcanthony/mathjs,mikberg/mathjs,tomekwi/mathjs,devanp92/mathjs,FSMaxB/mathjs,josdejong/mathjs,saromanov/mathjs,josdejong/mathjs,devanp92/mathjs,rjbaucells/mathjs,FSMaxB/mathjs,FSMaxB/mathjs,mefozzy/mathjs,frbl/mathjs,ericman314/mathjs,luke-gumbley/mathjs,tomekwi/mathjs,luke-gumbley/mathjs,FSMaxB/mathjs,frbl/mathjs,jomachim/mathjs,josdejong/mathjs,josdejong/mathjs,ericman314/mathjs,saromanov/mathjs