The Proof Machine (2016)
The Incredible Proof Machine is a visual tool designed to help users perform logical proofs without needing to learn complex syntax. It allows users to connect blocks representing proof steps to verify conclusions.
Why it matters
It serves as an accessible educational resource for students and enthusiasts to engage with formal logic and computer-aided theorem proving.
This is a tool to perform proofs in various logics (e.g. propositional, predicate logic) visually: You simply add blocks that represent the various proofs steps, connect them properly, and if the conclusion turns green, then you have created a complete proof! Simply drag and drop to connect two dots; for some examples of completed proofs, see this paper .
For a quick introduction to the UI, check out the introductory video on the Tea Leaves Programming channel (13min) !
The Incredible Proof Machin e was created to convey the fun and joy of doing proofs, especially in a computer aided way, without first having to learn the syntax of a “real” thereom prover like Isabelle .
Because your proof is not a proof (yet). This can have these reasons:
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