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| Mirrors > Home > ILE Home > Th. List > 1p1e2 | Unicode version | ||
| Description: 1 + 1 = 2. (Contributed by NM, 1-Apr-2008.) |
| Ref | Expression |
|---|---|
| 1p1e2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-2 9202 |
. 2
| |
| 2 | 1 | eqcomi 2235 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1495 ax-gen 1497 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-cleq 2224 df-2 9202 |
| This theorem is referenced by: 2m1e1 9261 add1p1 9394 sub1m1 9395 nn0n0n1ge2 9550 3halfnz 9577 10p10e20 9705 5t4e20 9712 6t4e24 9716 7t3e21 9720 8t3e24 9726 9t3e27 9733 fz0to3un2pr 10358 fldiv4p1lem1div2 10566 m1modge3gt1 10634 fac2 10994 hash2 11077 s2leng 11374 nn0o1gt2 12484 3lcm2e6woprm 12676 2exp8 13026 2exp11 13027 2exp16 13028 logbleb 15704 logblt 15705 1sgm2ppw 15738 1loopgrvd2fi 16175 2wlklem 16246 clwwlkext2edg 16292 konigsberglem1 16358 konigsberglem2 16359 konigsberglem3 16360 ex-exp 16370 |
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