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* Add Pair_introJosh Chen2018-06-301-0/+7
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* Move projection function definitions out of Sum.thyJosh Chen2018-06-271-170/+1
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* Dependent projection properties done.Josh Chen2018-06-181-27/+58
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* Fixed wrong definition of snd_dep. Proved projection property of snd_dep. ↵Josh Chen2018-06-181-16/+81
| | | | Added type formation rules expressing necessity of the conditions.
* Removed all [simp] attributes, these will be added later when I set up the ↵Josh Chen2018-06-181-18/+31
| | | | simplifier. Proved simplification rule for dependent fst.
* Proof of projection functions now harder. Should look up automation methods.Josh Chen2018-06-171-8/+14
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* Eliminators must be completely parametrized at the meta-level.Josh Chen2018-06-171-14/+5
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* projectionsJosh Chen2018-06-151-13/+28
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* Type rules now have \"all\" premises explicitly stated, matching the ↵Josh Chen2018-06-121-31/+62
| | | | formulation in the HoTT book.
* Reorganize codeJosh Chen2018-06-091-0/+78