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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 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-3 9366 |
. 2
| |
| 2 | 1 | eqcomi 2242 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 df-3 9366 |
| This theorem is used by: 1p2e3 9441 cnm2m1cnm3 9561 6t5e30 9892 7t5e35 9897 8t4e32 9902 9t4e36 9909 decbin3 9927 halfthird 9928 fz0to3un2pr 10540 m1modge3gt1 10821 fac3 11184 hash3 11268 hashtpgim 11311 nn0o1gt2 12688 flodddiv4 12719 3exp3 13238 13prm 13250 37prm 13255 43prm 13256 83prm 13257 139prm 13258 163prm 13259 317prm 13260 631prm 13261 1259lem1 13262 1259lem2 13263 1259lem3 13264 1259lem4 13265 1259lem5 13266 1259prm 13267 log2ublem3 16142 log2ublog2 16143 birthdaylog2 16147 2lgsoddprmlem3c 16326 clwwlknonex2lem1 16776 clwwlknonex2lem2 16777 konigsberglem1 16827 konigsberglem2 16828 konigsberglem3 16829 |
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