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Mirrors > Home > QLE Home > Th. List > leao1 | GIF version |
Description: L.e. absorption. (Contributed by NM, 8-Jul-2000.) |
Ref | Expression |
---|---|
leao1 | (a ∩ b) ≤ (a ∪ c) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lea 160 | . 2 (a ∩ b) ≤ a | |
2 | leo 158 | . 2 a ≤ (a ∪ c) | |
3 | 1, 2 | letr 137 | 1 (a ∩ b) ≤ (a ∪ c) |
Colors of variables: term |
Syntax hints: ≤ wle 2 ∪ wo 6 ∩ wa 7 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a3 32 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 |
This theorem depends on definitions: df-a 40 df-le1 130 df-le2 131 |
This theorem is referenced by: biao 799 mlaconj4 844 negantlem9 859 neg3antlem2 865 elimconslem 867 mhlem 876 mh 879 mlaconjolem 885 mlaconjo 886 lem4.6.2e1 1082 lem4.6.6i0j2 1089 lem4.6.6i0j3 1090 lem4.6.6i0j4 1091 lem4.6.6i2j0 1095 lem4.6.6i2j1 1096 lem4.6.6i2j4 1097 lem4.6.6i3j0 1098 lem4.6.6i3j1 1099 lem4.6.6i4j0 1100 lem4.6.6i4j2 1101 ml3le 1129 vneulem7 1137 vneulem12 1142 vneulem13 1143 vneulemexp 1148 dp15lemf 1159 dp41leme 1187 dp41lemf 1188 dp32 1196 xdp41 1198 xdp15 1199 xxdp41 1201 xxdp15 1202 xdp45lem 1204 xdp43lem 1205 xdp45 1206 xdp43 1207 3dp43 1208 testmod 1213 testmod2 1215 testmod2expanded 1216 |
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