lean2/tests/lean/alias2.lean

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scope
variable Natural : Type.
alias : Natural.
variable x : Natural.
print environment 1.
set_option pp::unicode false.
print environment 1.
set_option pp::unicode true.
print environment 1.
alias NN : Natural.
print environment 2.
alias : Natural.
print environment 3.
set_option pp::unicode false.
print environment 3.
pop_scope