lean2/tests/lean/arith1.lean

Import Int.
Check 10 + 20
Check 10
Check 10 - 20
Eval 10 - 20
Eval 15 + 10 - 20
Check 15 + 10 - 20
Variable x : Int
Variable n : Nat
Variable m : Nat
print n + m
print n + x + m
SetOption lean::pp::coercion true
print n + x + m + 10
print x + n + m + 10
print n + m + 10 + x
SetOption lean::pp::notation false
print n + m + 10 + x
chore(builtin): rename nat, int and real modules to Nat, Int and Real. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-01-01 21:52:25 +00:00			`Import Int.`
Add natural numbers. Fix how coercions and overloads interact (switch to approach used in C++). Add notation for natural and integer arithmetic. Rename m and u universe variables to M and U. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2013-09-02 19:24:29 +00:00			`Check 10 + 20`
			`Check 10`
			`Check 10 - 20`
			`Eval 10 - 20`
			`Eval 15 + 10 - 20`
			`Check 15 + 10 - 20`
			`Variable x : Int`
			`Variable n : Nat`
			`Variable m : Nat`
feat(frontends/lean/parser): combine Echo and Show commands into the 'print' command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-01-05 19:03:35 +00:00			`print n + m`
			`print n + x + m`
feat(frontends/lean): rename command Set to SetOption It is not nice to have Set as a reserved keyword. See example examples/lean/set.lean Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2013-12-19 05:18:45 +00:00			`SetOption lean::pp::coercion true`
feat(frontends/lean/parser): combine Echo and Show commands into the 'print' command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-01-05 19:03:35 +00:00			`print n + x + m + 10`
			`print x + n + m + 10`
			`print n + m + 10 + x`
feat(frontends/lean): rename command Set to SetOption It is not nice to have Set as a reserved keyword. See example examples/lean/set.lean Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2013-12-19 05:18:45 +00:00			`SetOption lean::pp::notation false`
feat(frontends/lean/parser): combine Echo and Show commands into the 'print' command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-01-05 19:03:35 +00:00			`print n + m + 10 + x`