
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 propositions:  
\\(①\\) If the function \\(y=f(x)\\) satisfies \\(f(x-1)=f(x+1)\\), then the graph of the function \\(f(x)\\) is symmetric about the line \\(x=1\\);  
\\(②\\) The symmetric point of point \\((2,1)\\) about the line \\(x-y+1=0\\) is \\((0,3)\\);  
\\(③\\) The regression equation \\( ∧y= ∧bx+ ∧a\\) can be used to estimate and observe the values and trends of variables;  
\\(④\\) The sine function is an odd function, \\(f(x)=\sin (x^{2}+1)\\) is a sine function, so \\(f(x)=\sin (x^{2}+1)\\) is an odd function. The reason for the error in the above reasoning is that the major premise is incorrect.  
Among these, the true propositions are \_\_\_\_\_\_.

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