notes/science/logic/harper.txt
Ihar Hancharenka 5dff80e88e first
2023-03-27 16:52:17 +03:00

11 строки
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|- turnstyle (Frege)
Meet - GLB (Lower semilattice)
Join - LUB (Upper semilattice)
Weekening
G |- A true => G,B true |- A true
Contraction
We can use assumption twice
Exchange
Order does not matter