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Common program specification and verification build on concepts like method pre-and postconditions and loop invariants. These lectures notes teach those concepts in the context of the language and verifier Dafny. Dafny is a language that is designed to make it easy to write correct code. This means correct in the sense of not having any runtime errors, but(More)
This paper presents complementary flyover and surface exploration for reconnaissance of planetary point destinations, like skylights and polar crater rims, where local 3D detail matters. Recent breakthroughs in precise, safe landing enable spacecraft to touch down within a few hundred meters of target destinations. These precision trajectories provide(More)
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