297d50378d
define embedding, (split) surjection, retraction, existential quantifier, 'or' connective also add a whole bunch of theorems about these definitions still has two sorry's which can be solved after #564 is closed
9 lines
247 B
Text
9 lines
247 B
Text
/-
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Copyright (c) 2015 Floris van Doorn. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Module: types.default
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Authors: Floris van Doorn
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-/
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import .sigma .prod .pi .equiv .fiber .eq .trunc .arrow .pointed
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