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Mirrors > Home > QLE Home > Th. List > orcom | GIF version |
Description: Commutative law. |
Ref | Expression |
---|---|
orcom | (a ∪ b) = (b ∪ a) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-a2 31 | 1 (a ∪ b) = (b ∪ a) |
Colors of variables: term |
Syntax hints: = wb 1 ∪ wo 6 |
This theorem was proved from axioms: ax-a2 31 |
This theorem is referenced by: k1-7 354 k1-8b 356 k1-5 360 mli 1124 mlduali 1126 ml3le 1127 vneulem2 1130 vneulem6 1134 vneulem9 1137 vneulem10 1138 vneulem11 1139 vneulem16 1144 vneulemexp 1146 dp15lema 1152 dp15lemd 1155 dp53lema 1161 dp53lemc 1163 dp53leme 1165 dp53lemf 1166 dp35lemc 1173 dp35lem0 1177 dp41lemc0 1182 dp41leme 1185 dp41lemf 1186 dp41lemg 1187 dp41leml 1191 dp32 1194 xdp41 1196 xdp15 1197 xdp53 1198 xxdp41 1199 xxdp15 1200 xxdp53 1201 xdp45lem 1202 xdp43lem 1203 xdp45 1204 xdp43 1205 3dp43 1206 oadp35lemc 1209 testmod 1211 testmod1 1212 testmod2 1213 testmod2expanded 1214 testmod3 1215 |
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