| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 9373 |
. 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 9373 |
| This theorem is used by: 1p2e3 9448 cnm2m1cnm3 9568 6t5e30 9898 7t5e35 9903 8t4e32 9908 9t4e36 9915 decbin3 9933 halfthird 9934 fz0to3un2pr 10546 m1modge3gt1 10828 fac3 11191 hash3 11275 hashtpgim 11318 nn0o1gt2 12696 flodddiv4 12727 3exp3 13246 13prm 13258 37prm 13263 43prm 13264 83prm 13265 139prm 13266 163prm 13267 317prm 13268 631prm 13269 1259lem1 13270 1259lem2 13271 1259lem3 13272 1259lem4 13273 1259lem5 13274 1259prm 13275 log2ublem3 16240 log2ublog2 16241 birthdaylog2 16245 chtqub 16313 2lgsoddprmlem3c 16450 clwwlknonex2lem1 16900 clwwlknonex2lem2 16901 konigsberglem1 16951 konigsberglem2 16952 konigsberglem3 16953 |
| Copyright terms: Public domain | W3C validator |