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Mirrors > Home > NFE Home > Th. List > df-tfin | Unicode version |
Description: Define the finite T operator. Definition from [Rosser] p. 528. (Contributed by SF, 12-Jan-2015.) |
Ref | Expression |
---|---|
df-tfin | Tfin Nn 1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cM | . . 3 | |
2 | 1 | ctfin 4435 | . 2 Tfin |
3 | c0 3550 | . . . 4 | |
4 | 1, 3 | wceq 1642 | . . 3 |
5 | vn | . . . . . . 7 | |
6 | 5 | cv 1641 | . . . . . 6 |
7 | cnnc 4373 | . . . . . 6 Nn | |
8 | 6, 7 | wcel 1710 | . . . . 5 Nn |
9 | va | . . . . . . . . 9 | |
10 | 9 | cv 1641 | . . . . . . . 8 |
11 | 10 | cpw1 4135 | . . . . . . 7 1 |
12 | 11, 6 | wcel 1710 | . . . . . 6 1 |
13 | 12, 9, 1 | wrex 2615 | . . . . 5 1 |
14 | 8, 13 | wa 358 | . . . 4 Nn 1 |
15 | 14, 5 | cio 4337 | . . 3 Nn 1 |
16 | 4, 3, 15 | cif 3662 | . 2 Nn 1 |
17 | 2, 16 | wceq 1642 | 1 Tfin Nn 1 |
Colors of variables: wff setvar class |
This definition is referenced by: tfinex 4485 eqtfinrelk 4486 tfineq 4488 tfinprop 4489 tfinnul 4491 |
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