
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Consider the operation "minus the reciprocal of," defined by \( a \diamond b = a - \frac{1}{b} \). Compute the following: \(((4 \diamond 5) \diamond 6) - (4 \diamond (5 \diamond 6))\).
A) \( -\frac{139}{870} \),
B) \( \frac{139}{870} \),
C) \( -\frac{1}{7} \),
D) \( \frac{1}{7} \),
E) \( 0 \)

Present the answer in LaTex format: \boxed{Your answer}
user