Statements: No winter are Summer.
Some summer are not music. Some spring are not winter
Some music are weather.
Conclusions: I- Some winter are not spring.
II- Some music are not summer.
There is something I don't understand about algebra: It has been around for thousands of years, yet no one has ever found out what the value of "x" or "y" really is.
Richard van der Merwe
''The most incomprehensible about Mathematics is that it is comprehensible''.