(@comm_ring_hom_comp_pointwise R S T g f) x ≡ @comm_ring_hom_apply S T g (@comm_ring_hom_apply R S f x); // Typed reflexivity exercises the proof-time comparison to generic comp. (@comm_ring_hom_comp ...

It's 179 years since mathematician William Rowan Hamilton invented quaternions during a stroll across a Dublin bridge ...

Formal verification, a rigorous mathematical method to confirm the correctness of software, hardware or system designs, has been successfully completed in the Lean 4 interactive theorem prover — a ...

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// The category uses the existing ring and structured-map classifiers directly.

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Kimco Realty Corp. Dep. Pfd. (Rep. 1/1000th 5.25% Cum. Redeem. Pfd. Series M) 0.71% Kimco Realty Corp. Dep. Pfd. (Rep. 1/1000th Pfd. Cl L) 0.80% Federal Realty Investment Trust Dep. Pfd. (Rep.

A secured loan is guaranteed by collateral, or an asset that the lender may be able to claim if the borrower defaults on payment. Mortgages and car loans are typically secured by the property the loan ...