Proof of `Endpoint projections of paired pure-response annihilators` (1st statement)
groundedproofs/Lax342547Proofs/PairedAnnihilators.lean · lax-342547
What this proof establishes
no assumptions
Assuming the claims on the left, the claim on the right holds — checked by the archive's pipeline. Proof code is not displayed here.
Description
The individual quotient maps descend through the nominal quotients. Pull back an arbitrary individual bilinear form. Its other endpoint block is zero, leaving exactly the desired individual tensor test.