I attempted to construct the complex conjugate of a variable thus -

x = var('x')
f = x*conjugate(x)
f({x:2+2i})
this throws a SyntaxError, although the `f({x:2+2i})`

case works perfectly.

1 | initial version |

I attempted to construct the complex conjugate of a variable thus -

x = var('x')
f = x*conjugate(x)
f({x:2+2i})
this throws a SyntaxError, although the `f({x:2+2i})`

case works perfectly.

2 | No.2 Revision |

I attempted to construct the complex conjugate of a variable thus -

```
x = var('x')
```~~ ~~f = x*conjugate(x)
~~ ~~f({x:2+2i})

this throws a SyntaxError, although the `f({x:2+2i})`

case works perfectly.

3 | No.3 Revision |

I attempted to construct the complex conjugate of a variable thus -

```
x = var('x')
f = x*conjugate(x)
f({x:2+2i})
```

this throws a SyntaxError, although the `f({x:2+2i})`

case works perfectly.

4 | f(x:2+2i) should be f(x:2) |

I attempted to construct the complex conjugate of a variable thus -

```
x = var('x')
f = x*conjugate(x)
f({x:2+2i})
```

this throws a SyntaxError, although the

case works perfectly.~~f({x:2+2i})~~f({x:2})

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