0 [ "fail - 0 is not truthy" println! ] [ "OK" println! ] if!
1 [ "OK" println! ] [ "fail - 1 is truthy" println! ] if!
1.1 [ "OK" println! ] [ "fail - 1.1 is truthy" println! ] if!
0.1 [ "OK" println! ] [ "fail - 0.1 is truthy" println! ] if!
-0.1 [ "OK" println! ] [ "fail - -0.1 is truthy" println! ] if!
-0.0 [ "fail - -0.0 is not truthy" println! ] [ "OK" println! ] if!
0.0 [ "fail - 0.0 is not truthy" println! ] [ "OK" println! ] if!