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Mirrors > Home > MPE Home > Th. List > Mathboxes > vk15.4jVD | Structured version Visualization version Unicode version |
Description: The following User's Proof is a Natural Deduction Sequent Calculus
transcription of the Fitch-style Natural Deduction proof of Unit 15
Excercise 4.f. found in the "Answers to Starred Exercises" on page 442
of "Understanding Symbolic Logic", Fifth Edition (2008), by Virginia
Klenk. The same proof may also be interpreted to be a Virtual Deduction
Hilbert-style axiomatic proof. It was completed automatically by the
tools program completeusersproof.cmd, which invokes Mel L. O'Cat's mmj2
and Norm Megill's Metamath Proof Assistant. vk15.4j 38734 is vk15.4jVD 39150
without virtual deductions and was automatically derived
from vk15.4jVD 39150. Step numbers greater than 25 are additional steps
necessary for the sequent calculus proof not contained in the
Fitch-style proof. Otherwise, step i of the User's Proof corresponds to
step i of the Fitch-style proof.
|
Ref | Expression |
---|---|
vk15.4jVD.1 | |
vk15.4jVD.2 | |
vk15.4jVD.3 |
Ref | Expression |
---|---|
vk15.4jVD |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vk15.4jVD.3 | . . . . . . 7 | |
2 | exanali 1786 | . . . . . . . 8 | |
3 | 2 | biimpri 218 | . . . . . . 7 |
4 | 1, 3 | e0a 38999 | . . . . . 6 |
5 | vk15.4jVD.2 | . . . . . . 7 | |
6 | idn1 38790 | . . . . . . . . . . . 12 | |
7 | alex 1753 | . . . . . . . . . . . . 13 | |
8 | 7 | biimpri 218 | . . . . . . . . . . . 12 |
9 | 6, 8 | e1a 38852 | . . . . . . . . . . 11 |
10 | sp 2053 | . . . . . . . . . . 11 | |
11 | 9, 10 | e1a 38852 | . . . . . . . . . 10 |
12 | idn2 38838 | . . . . . . . . . . 11 | |
13 | simpl 473 | . . . . . . . . . . 11 | |
14 | 12, 13 | e2 38856 | . . . . . . . . . 10 |
15 | pm3.2 463 | . . . . . . . . . 10 | |
16 | 11, 14, 15 | e12 38951 | . . . . . . . . 9 |
17 | 19.8a 2052 | . . . . . . . . 9 | |
18 | 16, 17 | e2 38856 | . . . . . . . 8 |
19 | notnot 136 | . . . . . . . 8 | |
20 | 18, 19 | e2 38856 | . . . . . . 7 |
21 | con3 149 | . . . . . . 7 | |
22 | 5, 20, 21 | e02 38922 | . . . . . 6 |
23 | hbe1 2021 | . . . . . . 7 | |
24 | 23 | hbn 2146 | . . . . . 6 |
25 | hba1 2151 | . . . . . . 7 | |
26 | 25 | hbn 2146 | . . . . . 6 |
27 | 4, 22, 24, 26 | exinst01 38850 | . . . . 5 |
28 | exnal 1754 | . . . . . 6 | |
29 | 28 | biimpri 218 | . . . . 5 |
30 | 27, 29 | e1a 38852 | . . . 4 |
31 | idn2 38838 | . . . . . 6 | |
32 | vk15.4jVD.1 | . . . . . . . . . 10 | |
33 | pm3.13 522 | . . . . . . . . . 10 | |
34 | 32, 33 | e0a 38999 | . . . . . . . . 9 |
35 | simpr 477 | . . . . . . . . . . . . 13 | |
36 | 12, 35 | e2 38856 | . . . . . . . . . . . 12 |
37 | 19.8a 2052 | . . . . . . . . . . . 12 | |
38 | 36, 37 | e2 38856 | . . . . . . . . . . 11 |
39 | hbe1 2021 | . . . . . . . . . . 11 | |
40 | 4, 38, 24, 39 | exinst01 38850 | . . . . . . . . . 10 |
41 | notnot 136 | . . . . . . . . . 10 | |
42 | 40, 41 | e1a 38852 | . . . . . . . . 9 |
43 | pm2.53 388 | . . . . . . . . 9 | |
44 | 34, 42, 43 | e01 38916 | . . . . . . . 8 |
45 | exanali 1786 | . . . . . . . . 9 | |
46 | 45 | con5i 38729 | . . . . . . . 8 |
47 | 44, 46 | e1a 38852 | . . . . . . 7 |
48 | sp 2053 | . . . . . . 7 | |
49 | 47, 48 | e1a 38852 | . . . . . 6 |
50 | con3 149 | . . . . . . 7 | |
51 | 50 | com12 32 | . . . . . 6 |
52 | 31, 49, 51 | e21 38957 | . . . . 5 |
53 | 19.8a 2052 | . . . . 5 | |
54 | 52, 53 | e2 38856 | . . . 4 |
55 | hbe1 2021 | . . . 4 | |
56 | 30, 54, 24, 55 | exinst11 38851 | . . 3 |
57 | exnal 1754 | . . . 4 | |
58 | 57 | biimpi 206 | . . 3 |
59 | 56, 58 | e1a 38852 | . 2 |
60 | 59 | in1 38787 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wo 383 wa 384 wal 1481 wex 1704 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-10 2019 ax-12 2047 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-ex 1705 df-nf 1710 df-vd1 38786 df-vd2 38794 |
This theorem is referenced by: (None) |
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