lean2/tests/lean/notation7.lean

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import logic data.num
open num
constant f : num → num
constant g : num → num → num
notation A `:+1`:100000 := f A
check g 0:+1:+1 (1:+1 + 2:+1):+1
set_option pp.notation false
check g 0:+1:+1 (1:+1 + 2:+1):+1