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Related theorems GIF version |
| Description: Identity law. |
| Ref | Expression |
|---|---|
| id | a = a |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-a1 29 | . 2 a = a⊥ ⊥ | |
| 2 | 1 | ax-r1 34 | . 2 a⊥ ⊥ = a |
| 3 | 1, 2 | ax-r2 35 | 1 a = a |
| Colors of variables: term |
| Syntax hints: = wb 1 ⊥ wn 4 |
| This theorem is referenced by: leid 140 str 181 mccune2 239 wql2lem4 283 nom10 299 ska2 414 woml7 419 u4lemana 590 u5lembi 707 u4lem1 719 u1lem3 731 u4lem6 750 u24lem 752 u12lem 753 u3lem11 768 u3lem13b 772 u3lem14a 773 mlaoml 815 mlaconj 827 neg3antlem2 847 mhlem 858 cancellem 873 gomaex3lem3 896 gomaex3 904 oa3to4lem6 930 oa4to6 945 oa3-2to2s 970 d3oa 975 d4oa 976 d6oa 977 mloa 998 oa43v 1008 oa64v 1010 oa63v 1011 axoa4 1013 oa6 1015 axoa4a 1016 4oa 1018 |
| This theorem was proved from axioms: ax-a1 29 ax-r1 34 ax-r2 35 |