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Mirrors > Home > MPE Home > Th. List > Mathboxes > ax12inda | Structured version Visualization version Unicode version |
Description: Induction step for constructing a substitution instance of ax-c15 34174 without using ax-c15 34174. Quantification case. (When and are distinct, ax12inda2 34232 may be used instead to avoid the dummy variable in the proof.) (Contributed by NM, 24-Jan-2007.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
ax12inda.1 |
Ref | Expression |
---|---|
ax12inda |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax6ev 1890 | . . 3 | |
2 | ax12inda.1 | . . . . . . 7 | |
3 | 2 | ax12inda2 34232 | . . . . . 6 |
4 | dveeq2-o 34218 | . . . . . . . . 9 | |
5 | 4 | imp 445 | . . . . . . . 8 |
6 | hba1-o 34182 | . . . . . . . . . 10 | |
7 | equequ2 1953 | . . . . . . . . . . 11 | |
8 | 7 | sps-o 34193 | . . . . . . . . . 10 |
9 | 6, 8 | albidh 1793 | . . . . . . . . 9 |
10 | 9 | notbid 308 | . . . . . . . 8 |
11 | 5, 10 | syl 17 | . . . . . . 7 |
12 | 7 | adantl 482 | . . . . . . . 8 |
13 | 8 | imbi1d 331 | . . . . . . . . . . 11 |
14 | 6, 13 | albidh 1793 | . . . . . . . . . 10 |
15 | 5, 14 | syl 17 | . . . . . . . . 9 |
16 | 15 | imbi2d 330 | . . . . . . . 8 |
17 | 12, 16 | imbi12d 334 | . . . . . . 7 |
18 | 11, 17 | imbi12d 334 | . . . . . 6 |
19 | 3, 18 | mpbii 223 | . . . . 5 |
20 | 19 | ex 450 | . . . 4 |
21 | 20 | exlimdv 1861 | . . 3 |
22 | 1, 21 | mpi 20 | . 2 |
23 | 22 | pm2.43i 52 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 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-11 2034 ax-12 2047 ax-13 2246 ax-c5 34168 ax-c4 34169 ax-c7 34170 ax-c10 34171 ax-c11 34172 ax-c9 34175 ax-c16 34177 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 |
This theorem is referenced by: (None) |
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