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Mirrors > Home > MPE Home > Th. List > 7p1e8 | Structured version Visualization version Unicode version |
Description: 7 + 1 = 8. (Contributed by Mario Carneiro, 18-Apr-2015.) |
Ref | Expression |
---|---|
7p1e8 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-8 10681 |
. 2
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2 | 1 | eqcomi 2462 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1671 ax-4 1684 ax-ext 2433 |
This theorem depends on definitions: df-bi 189 df-cleq 2446 df-8 10681 |
This theorem is referenced by: 7t4e28 11142 9t9e81 11160 s8len 13004 prmlem2 15103 83prm 15106 163prm 15108 317prm 15109 631prm 15110 2503lem2 15121 2503lem3 15122 4001lem2 15125 4001lem3 15126 4001prm 15128 nnsum3primesle9 38899 bgoldbtbndlem1 38910 |
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