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Mirrors > Home > ILE Home > Th. List > infeq123d | Unicode version |
Description: Equality deduction for infimum. (Contributed by AV, 2-Sep-2020.) |
Ref | Expression |
---|---|
infeq123d.a | |
infeq123d.b | |
infeq123d.c |
Ref | Expression |
---|---|
infeq123d | inf inf |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | infeq123d.a | . . 3 | |
2 | infeq123d.b | . . 3 | |
3 | infeq123d.c | . . . 4 | |
4 | 3 | cnveqd 4710 | . . 3 |
5 | 1, 2, 4 | supeq123d 6871 | . 2 |
6 | df-inf 6865 | . 2 inf | |
7 | df-inf 6865 | . 2 inf | |
8 | 5, 6, 7 | 3eqtr4g 2195 | 1 inf inf |
Colors of variables: wff set class |
Syntax hints: wi 4 wceq 1331 ccnv 4533 csup 6862 infcinf 6863 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 |
This theorem depends on definitions: df-bi 116 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ral 2419 df-rex 2420 df-rab 2423 df-in 3072 df-ss 3079 df-uni 3732 df-br 3925 df-opab 3985 df-cnv 4542 df-sup 6864 df-inf 6865 |
This theorem is referenced by: (None) |
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