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GIF version
Theorem
leo
158
Description:
L.e. absorption.
Assertion
Ref
Expression
leo
a
≤ (
a
∪
b
)
Proof of Theorem
leo
Step
Hyp
Ref
Expression
1
a5c
121
. 2
(
a
∩ (
a
∪
b
)) =
a
2
1
df2le1
135
1
a
≤ (
a
∪
b
)
Colors of variables:
term
Syntax hints:
≤
wle
2
∪
wo
6
This theorem is referenced by:
leor
159
leao1
162
leao2
163
ledio
176
comorr
184
distlem
188
womao
220
womaon
221
womaa
222
womaan
223
anorabs2
224
ka4lemo
228
bina3
284
bina4
285
nom14
311
nom21
314
nom22
315
nom24
317
i1or
345
i5lei4
350
k1-8a
355
2vwomlem
365
wr5-2v
366
ska2
432
gsth
489
i3bi
496
df2i3
498
dfi3b
499
oi3ai3
503
i3th8
550
i3con
551
i3orlem2
553
i3orlem4
555
i3orlem5
556
i3orlem7
558
ud3lem1a
566
ud3lem3d
575
ud3lem3
576
ud4lem1a
577
ud4lem1b
578
ud4lem1c
579
ud5lem1b
587
ud5lem1
589
u4lemana
608
u4lemona
628
u3lemob
632
u1lemc6
706
comi12
707
i2bi
722
u12lembi
726
u4lem1
737
u4lem6
768
u12lem
771
u1lem8
776
u1lem9b
778
u3lem13b
790
bi1o1a
798
test2
803
3vth6
809
3vded11
814
3vded12
815
2oalem1
825
mlalem
832
sadm3
838
bi3
839
orbi
842
negantlem1
848
negantlem2
849
negantlem3
850
negantlem9
859
neg3antlem1
864
neg3antlem2
865
comanb
872
mhlemlem1
874
mhlem
876
mh
879
cancellem
891
e2astlem1
895
gomaex3h3
904
gomaex3lem10
923
oas
925
oatr
928
oau
929
oa23
936
oa4lem1
937
distoah2
941
distoah4
943
oa3to4lem1
945
oa6to4h1
955
oa6to4h2
956
oa6to4h3
957
oa4to6lem1
960
oa4btoc
966
oa3-6lem
980
oa3-u1lem
985
oa3-2to2s
990
d3oa
995
d4oa
996
oaliv
1003
oadist2a
1007
mloa
1018
oadistd
1023
axoa4a
1036
4oadist
1043
lem3.3.5
1054
lem3.3.7i4e1
1068
lem4.6.6i0j1
1085
lem4.6.6i0j2
1086
lem4.6.6i0j3
1087
lem4.6.6i0j4
1088
lem4.6.6i1j3
1091
lem4.6.6i2j1
1093
lem4.6.6i3j0
1095
lem4.6.6i3j1
1096
lem4.6.6i4j2
1098
This theorem was proved from axioms:
ax-a1
30
ax-a2
31
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
Copyright terms:
Public domain