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Mirrors > Home > QLE Home > Th. List > id | GIF version |
Description: Identity law. (Contributed by NM, 9-Aug-1997.) |
Ref | Expression |
---|---|
id | a = a |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-a1 30 | . 2 a = a⊥ ⊥ | |
2 | 1 | ax-r1 35 | . 2 a⊥ ⊥ = a |
3 | 1, 2 | ax-r2 36 | 1 a = a |
Colors of variables: term |
Syntax hints: = wb 1 ⊥ wn 4 |
This theorem was proved from axioms: ax-a1 30 ax-r1 35 ax-r2 36 |
This theorem is referenced by: leid 148 str 189 mccune2 247 wql2lem4 291 nom10 307 woml7 437 u4lemana 608 u5lembi 725 u4lem1 737 u1lem3 749 u4lem6 768 u24lem 770 u12lem 771 u3lem11 786 u3lem13b 790 u3lem14a 791 mlaoml 833 mlaconj 845 neg3antlem2 865 mhlem 876 cancellem 891 gomaex3lem3 916 gomaex3 924 oa3to4lem6 950 oa4to6 965 oa3-2to2s 990 d3oa 995 d4oa 996 d6oa 997 mloa 1018 oa43v 1028 oa64v 1031 oa63v 1032 axoa4 1034 oa6 1036 axoa4a 1037 4oa 1039 dp15 1162 dp53 1170 dp35lem0 1179 dp35 1180 dp41 1195 xdp45lem 1204 xdp43lem 1205 xdp45 1206 xdp43 1207 3dp43 1208 oadp35 1212 |
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