Quantum networks could one day connect quantum computers into more powerful systems and enable new forms of secure communication. But a fundamental obstacle stands in the way: Quantum information is ...

For decades, event cameras, which emulate the biological retina by continuously monitoring changes in light intensity, have promised to revolutionize how robots perceive the world by allowing them to ...

When linguist Mark Liberman was working at Bell Labs in the 1980s, he commiserated with researchers at other companies about how difficult it was to acquire and digitize language data, such as the ...

Retatrutide, a next-generation GLP-1 weight-loss drug, is not yet approved for use. Nevertheless, online forums reveal that people are purchasing unapproved versions of the drug, which are not ...

Climate Week at Penn returned October 5–9 for its seventh annual campus-wide program, bringing together students, faculty and staff to explore climate challenges and opportunities for action. This ...

Daeyeon Lee, Russell Pearce and Elizabeth Crimian Heuer Professor in Chemical and Biomolecular Engineering, has been named the recipient of the 2026–27 George H. Heilmeier Faculty Award for Excellence ...

Not taught live. This is the required guided module Growth and Big-O (Backbone v2.2, October 4, 2026): pointed to from Lecture 17’s closing section (recursion and correctness), to be completed by ...

Penn Engineering’s Innovation & Impact podcast features Byron Cook, Vice President and Distinguished Scientist of the Automated Reasoning Group at Amazon Web Services and Professor at University ...

Your writeup should follow the writeup guidelines. Your writeup should include your answers to the questions below. Even if a certain question(like 1.2 or 1.3) is ...

Section titled “De Morgan’s laws: negating “or” and “and” (LOG-09)” Lecture 14, Example 3.1 (six negations), parts (a)–(c). Negate each of the following. (c) The negation of x ∈ A ∧ x ∈ B is x ∉ A ∨ x ...

Logical notation elucidates the structure of mathematical assertions. This in turn helps in determining the patterns we use in proving them. Lecture 13’s third section takes the two connectives whose ...

These are the first logic lectures, so every symbol on this page is read aloud here, at first use. Lecture 13, Definition 4.1 (propositions and predicates). In Section 2 we have seen two kinds of ...