Uneven Sechach-Sechach of different heights

Uneven Sechach-Sechach of different heights:[1] Less than three Tefachim between the higher and lower Sechach [Figure A]:[2] If the Sechach was uneven, with some of it being going slightly upwards and some of it going slightly downwards, then it nevertheless remains valid. [For example, if a Sukkah is made with […]