105: Origin already set
In a multi-tagged list you can set an origin by using one empty tag pair <><>
. You used an empty tag pair at least twice within the same list, which is not allowed.
Details
Consider the following condensed truth table. It illustrates the binary logical AND-relation, which is also known as logical conjunction and symbolized by the operator ∧:
∧ | 0 | 1 |
---|---|---|
0 | 0 | 0 |
1 | 0 | 1 |
This is how the truth table is written as a double-tagged list in Aneamal:
<><> ∧
<0><0> 0
<0><1> 0
<1><0> 0
<1><1> 1
As you can see, the operator ∧ is associated with two empty tags <><>
. This item is called origin and its content is placed in the top-left table cell in the output. Like any other tag combination you can use the empty tag pair of the origin only once in each multi-tagged list.
Solution
Make sure you use an empty tag pair <><>
at most once in a multi-tagged list.