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| Mirrors > Home > ILE Home > Th. List > r19.29d2r | Unicode version | ||
| Description: Theorem 19.29 of [Margaris] p. 90 with two restricted quantifiers, deduction version (Contributed by Thierry Arnoux, 30-Jan-2017.) |
| Ref | Expression |
|---|---|
| r19.29d2r.1 |
|
| r19.29d2r.2 |
|
| Ref | Expression |
|---|---|
| r19.29d2r |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | r19.29d2r.1 |
. . 3
| |
| 2 | r19.29d2r.2 |
. . 3
| |
| 3 | r19.29 2494 |
. . 3
| |
| 4 | 1, 2, 3 | syl2anc 403 |
. 2
|
| 5 | r19.29 2494 |
. . 3
| |
| 6 | 5 | reximi 2458 |
. 2
|
| 7 | 4, 6 | syl 14 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-5 1376 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-4 1440 ax-ial 1467 |
| This theorem depends on definitions: df-bi 115 df-ral 2353 df-rex 2354 |
| This theorem is referenced by: r19.29vva 2500 cauappcvgprlemdisj 6841 |
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