### Some articles on *proof calculi, calculi*:

Proof Calculus - Examples of

... The most widely known

**Proof Calculi**... The most widely known

**proof calculi**are those classical**calculi**that are still in widespread use The class of Hilbert systems, of which the most famous example is the 1928 Hilbert-Ackermann system ... Many other**proof calculi**were, or might have been, seminal, but are not widely used today ... Modern research in logic teems with rival**proof calculi**Several systems have been proposed which replace the usual textual syntax with some graphical ...### Famous quotes containing the word proof:

“In the reproof of chance

Lies the true *proof* of men.”

—William Shakespeare (1564–1616)

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