Proof (0LLX) · history · ScalingStacks

Source history

David Gepner, Joachim Kock

Detailed backend records are private. Public author/source status appears above.

The permanent identity and original source provenance are retained below.

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  "title": "Proof. If f : X →Y belongs to F then so does the (ﬁrst) projection X ×Y X →X since it is the pullback",
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