
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
Given the following reasoning:  
① From "6=3+3, 8=3+5, 10=3+7, 12=5+7..." it is concluded that any even number not less than 6 is equal to the sum of two odd prime numbers;  
② From "The sum of the interior angles of a triangle is 180°" it is concluded that the sum of the interior angles of a right triangle is 180°;  
③ From "The area of a square is the square of its side length" it is concluded that the volume of a cube is the cube of its side length;  
④ From "$a^2+b^2\geq2ab$ ($a,b\in\mathbb{R}$)" it is deduced that $\sin2x\leq1$.  
Among these, the numbers that represent deductive reasoning are     .

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