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| Mirrors > Home > MPE Home > Th. List > df-ima | Structured version Visualization version Unicode version | ||
| Description: Define the image of a
class (as restricted by another class).
Definition 6.6(2) of [TakeutiZaring] p. 24. For example,
|
| Ref | Expression |
|---|---|
| df-ima |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cA |
. . 3
| |
| 2 | cB |
. . 3
| |
| 3 | 1, 2 | cima 5117 |
. 2
|
| 4 | 1, 2 | cres 5116 |
. . 3
|
| 5 | 4 | crn 5115 |
. 2
|
| 6 | 3, 5 | wceq 1483 |
1
|
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