scratsearcher 🔍🔮📊🎲@sopuli.xyz to

Daily Maths Challenges@lemmy.worldEnglish · 6 months ago

Equalities 1

hrmacbeth.github.io

3

6

Equalities 1

hrmacbeth.github.io

scratsearcher 🔍🔮📊🎲@sopuli.xyz to

Daily Maths Challenges@lemmy.worldEnglish · 6 months ago

3

1. Proofs by calculation — The Mechanics of Proof, by Heather Macbeth

hrmacbeth.github.io

Let a and b be rational numbers and suppose that (a-b)=4 and a*b=1 . Show that (a+b)^2 = 20.

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scratsearcher 🔍🔮📊🎲@sopuli.xyzOP
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6 months ago
yeah I found this website quite interesting even if I dont want to learn lean right now you can learn some cool proofs. Do you mind if I post other questions from that one here?

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