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Mirrors > Home > ILE Home > Th. List > 7p1e8 | 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 7759 |
. 2
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2 | 1 | eqcomi 2041 |
1
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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 99 ax-ia2 100 ax-ia3 101 ax-5 1333 ax-gen 1335 ax-ext 2019 |
This theorem depends on definitions: df-bi 110 df-cleq 2030 df-8 7759 |
This theorem is referenced by: 7t4e28 8227 9t9e81 8245 |
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