A := B A: variable, B: OBJECT assignment
A ::= K[...] A: variable, K: RING assignment special syntax for rings
A = B A,B: OBJECT returns BOOL
A <> B A,B: OBJECT returns BOOL
A < B A,B: OBJECT returns BOOL
A <= B A,B: OBJECT returns BOOL
A > B A,B: OBJECT returns BOOL
A >= B A,B: OBJECT returns BOOL
A >< B A,B: LIST returns LIST
A..B A,B: INT returns LIST
A..B A,B: RINGELEM (indets) returns LIST
[...] returns LIST
[..|..] returns LIST
I : J I, J: IDEAL returns IDEAL
L[N] L: LIST, N: INT returns OBJECT
S[N] S: STRING, N: INT returns STRING
M[i,j] M: MAT, i,j: INT returns RINGELEM
R.F R: RECORD and F field name returns OBJECT
R/I R: RING, I: IDEAL returns RING
***E*** E: expression returns OBJECT
?S S: STRING prints manual
<< S S: STRING [OBSOLESCENT]
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