# assume gives false for a<oo

Hello

```
reset()
var('a')
assume(a<99)
print(bool(a<+Infinity)) # or print(bool(a<oo))
```

Why does this code print `False`

.

assume gives false for a<oo

Hello

```
reset()
var('a')
assume(a<99)
print(bool(a<+Infinity)) # or print(bool(a<oo))
```

Why does this code print `False`

.

add a comment

0

First, you should know that for symbolic computations, `False`

does not mean `i know this is False`

, but `i was not able to prove it is True`

.

That said, for such simple comparison, Sage should indeed be able to decide, hence i consider this as a bug.

Thanks for reporting, this is now trac ticket 29938 and it is also listed on the symbolic wiki page

Thanks for the clarification. I think it is an important point of view.

Please start posting anonymously - your entry will be published after you log in or create a new account.

Asked: ** 2020-06-21 18:42:01 +0200 **

Seen: **104 times**

Last updated: **Jun 22 '20**

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