| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > ffvelrnd | Unicode version | ||
| Description: A function's value belongs to its codomain. (Contributed by Mario Carneiro, 29-Dec-2016.) |
| Ref | Expression |
|---|---|
| ffvelrnd.1 |
|
| ffvelrnd.2 |
|
| Ref | Expression |
|---|---|
| ffvelrnd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ffvelrnd.2 |
. 2
| |
| 2 | ffvelrnd.1 |
. . 3
| |
| 3 | 2 | ffvelrnda 5323 |
. 2
|
| 4 | 1, 3 | mpdan 412 |
1
|
| Copyright terms: Public domain | W3C validator |