daf bit: Kiddushin 34
Now we get to the g'mara. What are positive time-bound commandments from which women are exempt? The g'mara lists: dwelling in the sukkah, taking the lulav (a special ritual done during Sukkot), hearing the shofar, wearing tzitzit (fringes), and wearing t'filin (phylacteries). And what are positive commandments not bound by time? Placing a mezuzah on your doorpost, building a guard-rail on your roof/balcony, returning lost property, and sending away the mother bird before taking the eggs from the nest. These are not complete lists.
But the g'mara goes on to object. It points out several positive time-bound commandments that women are obligated to, including rejoicing on festivals, eating matzah on Pesach, and assembling at the Temple on Sukkot (when we were able to do so). And there are positive non-time-bound commandments from which women are exempt, such as studying torah and procreation. R' Yochanan answers: we cannot learn these from general principles. Over the next couple pages the g'mara presents sources about specific commandments. (29a mishna, 34a g'mara)
Remember that the talmud doesn't always start from "we have these facts; what can we derive?", but, rather, often starts from "we know the law to be X (because the oral law is a received tradition); from where do we know it or how can we characterize it?". We aren't here given a principle from which we can derive that women are exempt from sukkah, lulav, and so on; we're given a list.

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