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Mirrors > Home > ILE Home > Th. List > 2p1e3 | Unicode version |
Description: 2 + 1 = 3. (Contributed by Mario Carneiro, 18-Apr-2015.) |
Ref | Expression |
---|---|
2p1e3 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-3 8543 |
. 2
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2 | 1 | eqcomi 2093 |
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 105 ax-ia2 106 ax-ia3 107 ax-5 1382 ax-gen 1384 ax-ext 2071 |
This theorem depends on definitions: df-bi 116 df-cleq 2082 df-3 8543 |
This theorem is referenced by: 1p2e3 8611 cnm2m1cnm3 8728 6t5e30 9044 7t5e35 9049 8t4e32 9054 9t4e36 9061 decbin3 9079 m1modge3gt1 9839 fac3 10201 hash3 10282 nn0o1gt2 11244 flodddiv4 11273 |
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