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Mirrors > Home > MPE Home > Th. List > xaddmnf2 | Structured version Visualization version Unicode version |
Description: Addition of negative infinity on the left. (Contributed by Mario Carneiro, 20-Aug-2015.) |
Ref | Expression |
---|---|
xaddmnf2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mnfxr 10096 | . . 3 | |
2 | xaddval 12054 | . . 3 | |
3 | 1, 2 | mpan 706 | . 2 |
4 | mnfnepnf 10095 | . . . . 5 | |
5 | ifnefalse 4098 | . . . . 5 | |
6 | 4, 5 | ax-mp 5 | . . . 4 |
7 | eqid 2622 | . . . . 5 | |
8 | 7 | iftruei 4093 | . . . 4 |
9 | 6, 8 | eqtri 2644 | . . 3 |
10 | ifnefalse 4098 | . . 3 | |
11 | 9, 10 | syl5eq 2668 | . 2 |
12 | 3, 11 | sylan9eq 2676 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wceq 1483 wcel 1990 wne 2794 cif 4086 (class class class)co 6650 cc0 9936 caddc 9939 cpnf 10071 cmnf 10072 cxr 10073 cxad 11944 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-cnex 9992 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-mulcl 9998 ax-i2m1 10004 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-nel 2898 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-iota 5851 df-fun 5890 df-fv 5896 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-pnf 10076 df-mnf 10077 df-xr 10078 df-xadd 11947 |
This theorem is referenced by: xaddnepnf 12068 xaddcom 12071 xaddid1 12072 xnegdi 12078 xpncan 12081 xleadd1a 12083 xlt2add 12090 xadddilem 12124 xadddi2 12127 xrsnsgrp 19782 xaddeq0 29518 supxrgelem 39553 supxrge 39554 xrlexaddrp 39568 infleinflem2 39587 |
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