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| Mirrors > Home > MPE Home > Th. List > df-gic | Structured version Visualization version GIF version | ||
| Description: Two groups are said to be isomorphic iff they are connected by at least one isomorphism. Isomorphic groups share all global group properties, but to relate local properties requires knowledge of a specific isomorphism. (Contributed by Stefan O'Rear, 25-Jan-2015.) |
| Ref | Expression |
|---|---|
| df-gic | ⊢ ≃𝑔 = (◡ GrpIso “ (V ∖ 1o)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cgic 19465 | . 2 class ≃𝑔 | |
| 2 | cgim 19464 | . . . 4 class GrpIso | |
| 3 | 2 | ccnv 5650 | . . 3 class ◡ GrpIso |
| 4 | cvv 3451 | . . . 4 class V | |
| 5 | c1o 8462 | . . . 4 class 1o | |
| 6 | 4, 5 | cdif 3896 | . . 3 class (V ∖ 1o) |
| 7 | 3, 6 | cima 5654 | . 2 class (◡ GrpIso “ (V ∖ 1o)) |
| 8 | 1, 7 | wceq 1570 | 1 wff ≃𝑔 = (◡ GrpIso “ (V ∖ 1o)) |
| Colors of variables: wff setvar class |
| This definition is used by: brgic 19477 gicer 19484 |
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