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Related theorems Unicode version |
| Description: Lemma for Kalmbach implication OR builder. |
| Ref | Expression |
|---|---|
| i3orlem8 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | anass 69 |
. . . . . 6
| |
| 2 | ancom 68 |
. . . . . . 7
| |
| 3 | 2 | lan 70 |
. . . . . 6
|
| 4 | 1, 3 | ax-r2 35 |
. . . . 5
|
| 5 | leor 151 |
. . . . 5
| |
| 6 | 4, 5 | bltr 130 |
. . . 4
|
| 7 | i3n1 241 |
. . . . . . 7
| |
| 8 | 7 | lan 70 |
. . . . . 6
|
| 9 | comor1 443 |
. . . . . . . . 9
| |
| 10 | comor2 444 |
. . . . . . . . . 10
| |
| 11 | 10 | comcom2 175 |
. . . . . . . . 9
|
| 12 | 9, 11 | com2an 466 |
. . . . . . . 8
|
| 13 | 9, 10 | com2an 466 |
. . . . . . . 8
|
| 14 | 12, 13 | com2or 465 |
. . . . . . 7
|
| 15 | 9 | comcom2 175 |
. . . . . . . 8
|
| 16 | 9, 11 | com2or 465 |
. . . . . . . 8
|
| 17 | 15, 16 | com2an 466 |
. . . . . . 7
|
| 18 | 14, 17 | fh1 451 |
. . . . . 6
|
| 19 | 8, 18 | ax-r2 35 |
. . . . 5
|
| 20 | 19 | ax-r1 34 |
. . . 4
|
| 21 | 6, 20 | lbtr 131 |
. . 3
|
| 22 | 21 | ler 141 |
. 2
|
| 23 | i3orlem6 539 |
. . 3
| |
| 24 | 23 | ax-r1 34 |
. 2
|
| 25 | 22, 24 | lbtr 131 |
1
|
| Colors of variables: term |
| Syntax hints: |
| This theorem was proved from axioms: ax-a1 29 ax-a2 30 ax-a3 31 ax-a4 32 ax-a5 33 ax-r1 34 ax-r2 35 ax-r4 36 ax-r5 37 ax-r3 421 |
| This theorem depends on definitions: df-b 38 df-a 39 df-t 40 df-f 41 df-i3 45 df-le1 122 df-le2 123 df-c1 124 df-c2 125 |